Finding the Fourth Proportional to 1,330.17, 1,835.61 and 740.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,330.17 : 1,835.61 = 740.72 : x
2. Step 2: Convert to fraction form
   1,330.17/1,835.61 = 740.72/x
3. Step 3: Cross multiply
   1,330.17x = 1,835.61 × 740.72
4. Step 4: Simplify right side
   1,330.17x = 1,359,663.86
5. Step 5: Solve for x
   x = 1,359,663.86/1,330.17
6. Step 6: Final answer
   x = 1,022.17