Finding the Fourth Proportional to 2,549,209.16, 3,517,953.36 and 1,387,688.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,549,209.16 : 3,517,953.36 = 1,387,688.72 : x
2. Step 2: Convert to fraction form
   2,549,209.16/3,517,953.36 = 1,387,688.72/x
3. Step 3: Cross multiply
   2,549,209.16x = 3,517,953.36 × 1,387,688.72
4. Step 4: Simplify right side
   2,549,209.16x = 4,881,824,195,158.10
5. Step 5: Solve for x
   x = 4,881,824,195,158.10/2,549,209.16
6. Step 6: Final answer
   x = 1,915,034.78