Finding the Fourth Proportional to 2,309,479.48, 3,187,085.70 and 1,290,883.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,309,479.48 : 3,187,085.70 = 1,290,883.42 : x
2. Step 2: Convert to fraction form
   2,309,479.48/3,187,085.70 = 1,290,883.42/x
3. Step 3: Cross multiply
   2,309,479.48x = 3,187,085.70 × 1,290,883.42
4. Step 4: Simplify right side
   2,309,479.48x = 4,114,156,088,249.09
5. Step 5: Solve for x
   x = 4,114,156,088,249.09/2,309,479.48
6. Step 6: Final answer
   x = 1,781,421.37