Finding the Fourth Proportional to 2,162.17, 3,242.66 and 929.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162.17 : 3,242.66 = 929.31 : x
2. Step 2: Convert to fraction form
   2,162.17/3,242.66 = 929.31/x
3. Step 3: Cross multiply
   2,162.17x = 3,242.66 × 929.31
4. Step 4: Simplify right side
   2,162.17x = 3,013,436.36
5. Step 5: Solve for x
   x = 3,013,436.36/2,162.17
6. Step 6: Final answer
   x = 1,393.71