Finding the Fourth Proportional to 772,667.32, 1,157,610.86 and 727,087.50

Step by Step Solution

1. Step 1: Write the proportion equation
   772,667.32 : 1,157,610.86 = 727,087.50 : x
2. Step 2: Convert to fraction form
   772,667.32/1,157,610.86 = 727,087.50/x
3. Step 3: Cross multiply
   772,667.32x = 1,157,610.86 × 727,087.50
4. Step 4: Simplify right side
   772,667.32x = 841,684,386,170.25
5. Step 5: Solve for x
   x = 841,684,386,170.25/772,667.32
6. Step 6: Final answer
   x = 1,089,323.13