Finding the Fourth Proportional to 2,065,464.90, 3,098,199.78 and 645,528.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,065,464.90 : 3,098,199.78 = 645,528.42 : x
2. Step 2: Convert to fraction form
   2,065,464.90/3,098,199.78 = 645,528.42/x
3. Step 3: Cross multiply
   2,065,464.90x = 3,098,199.78 × 645,528.42
4. Step 4: Simplify right side
   2,065,464.90x = 1,999,976,008,827.75
5. Step 5: Solve for x
   x = 1,999,976,008,827.75/2,065,464.90
6. Step 6: Final answer
   x = 968,293.39