Finding the Fourth Proportional to 1,521.56, 2,281.42 and 740.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,521.56 : 2,281.42 = 740.02 : x
2. Step 2: Convert to fraction form
   1,521.56/2,281.42 = 740.02/x
3. Step 3: Cross multiply
   1,521.56x = 2,281.42 × 740.02
4. Step 4: Simplify right side
   1,521.56x = 1,688,296.43
5. Step 5: Solve for x
   x = 1,688,296.43/1,521.56
6. Step 6: Final answer
   x = 1,109.58