Finding the Fourth Proportional to 2,605,772.52, 3,909,181.23 and 899,978.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,605,772.52 : 3,909,181.23 = 899,978.40 : x
2. Step 2: Convert to fraction form
   2,605,772.52/3,909,181.23 = 899,978.40/x
3. Step 3: Cross multiply
   2,605,772.52x = 3,909,181.23 × 899,978.40
4. Step 4: Simplify right side
   2,605,772.52x = 3,518,178,668,685.43
5. Step 5: Solve for x
   x = 3,518,178,668,685.43/2,605,772.52
6. Step 6: Final answer
   x = 1,350,148.04