Finding the Fourth Proportional to 1,920,674,426.72, 2,649,719,085.18 and 1,285,799,451.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,920,674,426.72 : 2,649,719,085.18 = 1,285,799,451.26 : x
2. Step 2: Convert to fraction form
   1,920,674,426.72/2,649,719,085.18 = 1,285,799,451.26/x
3. Step 3: Cross multiply
   1,920,674,426.72x = 2,649,719,085.18 × 1,285,799,451.26
4. Step 4: Simplify right side
   1,920,674,426.72x = 3,407,007,345,717,593,088
5. Step 5: Solve for x
   x = 3,407,007,345,717,593,088/1,920,674,426.72
6. Step 6: Final answer
   x = 1,773,859,899.59