Finding the Fourth Proportional to 1,402.30, 1,933.50 and 960.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,402.30 : 1,933.50 = 960.58 : x
2. Step 2: Convert to fraction form
   1,402.30/1,933.50 = 960.58/x
3. Step 3: Cross multiply
   1,402.30x = 1,933.50 × 960.58
4. Step 4: Simplify right side
   1,402.30x = 1,857,281.43
5. Step 5: Solve for x
   x = 1,857,281.43/1,402.30
6. Step 6: Final answer
   x = 1,324.45