Finding the Fourth Proportional to 1,488,415.30, 2,053,989.69 and 809,345.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488,415.30 : 2,053,989.69 = 809,345.86 : x
2. Step 2: Convert to fraction form
   1,488,415.30/2,053,989.69 = 809,345.86/x
3. Step 3: Cross multiply
   1,488,415.30x = 2,053,989.69 × 809,345.86
4. Step 4: Simplify right side
   1,488,415.30x = 1,662,388,052,084.18
5. Step 5: Solve for x
   x = 1,662,388,052,084.18/1,488,415.30
6. Step 6: Final answer
   x = 1,116,884.55