Finding the Fourth Proportional to 1,007,040.38, 1,389,833.86 and 565,587.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,007,040.38 : 1,389,833.86 = 565,587.34 : x
2. Step 2: Convert to fraction form
   1,007,040.38/1,389,833.86 = 565,587.34/x
3. Step 3: Cross multiply
   1,007,040.38x = 1,389,833.86 × 565,587.34
4. Step 4: Simplify right side
   1,007,040.38x = 786,072,435,919.33
5. Step 5: Solve for x
   x = 786,072,435,919.33/1,007,040.38
6. Step 6: Final answer
   x = 780,576.88