Finding the Fourth Proportional to 871,667.42, 1,202,998.43 and 527,692.87

Step by Step Solution

1. Step 1: Write the proportion equation
   871,667.42 : 1,202,998.43 = 527,692.87 : x
2. Step 2: Convert to fraction form
   871,667.42/1,202,998.43 = 527,692.87/x
3. Step 3: Cross multiply
   871,667.42x = 1,202,998.43 × 527,692.87
4. Step 4: Simplify right side
   871,667.42x = 634,813,692,443.93
5. Step 5: Solve for x
   x = 634,813,692,443.93/871,667.42
6. Step 6: Final answer
   x = 728,275.12