Finding the Fourth Proportional to 1,561.45, 2,339.04 and 740.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,561.45 : 2,339.04 = 740.52 : x
2. Step 2: Convert to fraction form
   1,561.45/2,339.04 = 740.52/x
3. Step 3: Cross multiply
   1,561.45x = 2,339.04 × 740.52
4. Step 4: Simplify right side
   1,561.45x = 1,732,105.90
5. Step 5: Solve for x
   x = 1,732,105.90/1,561.45
6. Step 6: Final answer
   x = 1,109.29