Finding the Fourth Proportional to 2,877,155.15, 3,970,191.42 and 1,587,912.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,877,155.15 : 3,970,191.42 = 1,587,912.30 : x
2. Step 2: Convert to fraction form
   2,877,155.15/3,970,191.42 = 1,587,912.30/x
3. Step 3: Cross multiply
   2,877,155.15x = 3,970,191.42 × 1,587,912.30
4. Step 4: Simplify right side
   2,877,155.15x = 6,304,315,789,172.47
5. Step 5: Solve for x
   x = 6,304,315,789,172.47/2,877,155.15
6. Step 6: Final answer
   x = 2,191,162.96