Finding the Fourth Proportional to 1,425.85, 2,142.18 and 932.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,425.85 : 2,142.18 = 932.67 : x
2. Step 2: Convert to fraction form
   1,425.85/2,142.18 = 932.67/x
3. Step 3: Cross multiply
   1,425.85x = 2,142.18 × 932.67
4. Step 4: Simplify right side
   1,425.85x = 1,997,947.02
5. Step 5: Solve for x
   x = 1,997,947.02/1,425.85
6. Step 6: Final answer
   x = 1,401.23