Finding the Fourth Proportional to 782,288.08, 1,079,468.27 and 438,076.15

Step by Step Solution

1. Step 1: Write the proportion equation
   782,288.08 : 1,079,468.27 = 438,076.15 : x
2. Step 2: Convert to fraction form
   782,288.08/1,079,468.27 = 438,076.15/x
3. Step 3: Cross multiply
   782,288.08x = 1,079,468.27 × 438,076.15
4. Step 4: Simplify right side
   782,288.08x = 472,889,300,522.50
5. Step 5: Solve for x
   x = 472,889,300,522.50/782,288.08
6. Step 6: Final answer
   x = 604,495.09