Finding the Fourth Proportional to 2,639,153.60, 3,642,047.52 and 1,431,928.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,639,153.60 : 3,642,047.52 = 1,431,928.64 : x
2. Step 2: Convert to fraction form
   2,639,153.60/3,642,047.52 = 1,431,928.64/x
3. Step 3: Cross multiply
   2,639,153.60x = 3,642,047.52 × 1,431,928.64
4. Step 4: Simplify right side
   2,639,153.60x = 5,215,152,152,128.97
5. Step 5: Solve for x
   x = 5,215,152,152,128.97/2,639,153.60
6. Step 6: Final answer
   x = 1,976,069.96