Finding the Fourth Proportional to 1,913,061.97, 2,639,830.16 and 1,177,899.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,913,061.97 : 2,639,830.16 = 1,177,899.49 : x
2. Step 2: Convert to fraction form
   1,913,061.97/2,639,830.16 = 1,177,899.49/x
3. Step 3: Cross multiply
   1,913,061.97x = 2,639,830.16 × 1,177,899.49
4. Step 4: Simplify right side
   1,913,061.97x = 3,109,454,599,150.62
5. Step 5: Solve for x
   x = 3,109,454,599,150.62/1,913,061.97
6. Step 6: Final answer
   x = 1,625,381.01