Finding the Fourth Proportional to 3,436,399.60, 5,153,287.20 and 1,039,447.60

Step by Step Solution

1. Step 1: Write the proportion equation
   3,436,399.60 : 5,153,287.20 = 1,039,447.60 : x
2. Step 2: Convert to fraction form
   3,436,399.60/5,153,287.20 = 1,039,447.60/x
3. Step 3: Cross multiply
   3,436,399.60x = 5,153,287.20 × 1,039,447.60
4. Step 4: Simplify right side
   3,436,399.60x = 5,356,572,012,150.72
5. Step 5: Solve for x
   x = 5,356,572,012,150.72/3,436,399.60
6. Step 6: Final answer
   x = 1,558,774.48