Finding the Fourth Proportional to 2,087,428.71, 3,130,156.18 and 808,635.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087,428.71 : 3,130,156.18 = 808,635.14 : x
2. Step 2: Convert to fraction form
   2,087,428.71/3,130,156.18 = 808,635.14/x
3. Step 3: Cross multiply
   2,087,428.71x = 3,130,156.18 × 808,635.14
4. Step 4: Simplify right side
   2,087,428.71x = 2,531,154,280,836.17
5. Step 5: Solve for x
   x = 2,531,154,280,836.17/2,087,428.71
6. Step 6: Final answer
   x = 1,212,570.41