Finding the Fourth Proportional to 1,238,734.64, 1,708,167.72 and 875,992.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,238,734.64 : 1,708,167.72 = 875,992.88 : x
2. Step 2: Convert to fraction form
   1,238,734.64/1,708,167.72 = 875,992.88/x
3. Step 3: Cross multiply
   1,238,734.64x = 1,708,167.72 × 875,992.88
4. Step 4: Simplify right side
   1,238,734.64x = 1,496,342,760,565.83
5. Step 5: Solve for x
   x = 1,496,342,760,565.83/1,238,734.64
6. Step 6: Final answer
   x = 1,207,960.70