Finding the Fourth Proportional to 1,402.96, 1,936.92 and 931.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,402.96 : 1,936.92 = 931.52 : x
2. Step 2: Convert to fraction form
   1,402.96/1,936.92 = 931.52/x
3. Step 3: Cross multiply
   1,402.96x = 1,936.92 × 931.52
4. Step 4: Simplify right side
   1,402.96x = 1,804,279.72
5. Step 5: Solve for x
   x = 1,804,279.72/1,402.96
6. Step 6: Final answer
   x = 1,286.05