Finding the Fourth Proportional to 2,428,385.46, 3,641,943.20 and 722,069.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,428,385.46 : 3,641,943.20 = 722,069.21 : x
2. Step 2: Convert to fraction form
   2,428,385.46/3,641,943.20 = 722,069.21/x
3. Step 3: Cross multiply
   2,428,385.46x = 3,641,943.20 × 722,069.21
4. Step 4: Simplify right side
   2,428,385.46x = 2,629,735,027,468.81
5. Step 5: Solve for x
   x = 2,629,735,027,468.81/2,428,385.46
6. Step 6: Final answer
   x = 1,082,914.99