Finding the Fourth Proportional to 2,539,003.44, 3,808,488.72 and 645,728.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,539,003.44 : 3,808,488.72 = 645,728.52 : x
2. Step 2: Convert to fraction form
   2,539,003.44/3,808,488.72 = 645,728.52/x
3. Step 3: Cross multiply
   2,539,003.44x = 3,808,488.72 × 645,728.52
4. Step 4: Simplify right side
   2,539,003.44x = 2,459,249,784,602.29
5. Step 5: Solve for x
   x = 2,459,249,784,602.29/2,539,003.44
6. Step 6: Final answer
   x = 968,588.60