Finding the Fourth Proportional to 1,561.27, 2,343.01 and 739.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,561.27 : 2,343.01 = 739.72 : x
2. Step 2: Convert to fraction form
   1,561.27/2,343.01 = 739.72/x
3. Step 3: Cross multiply
   1,561.27x = 2,343.01 × 739.72
4. Step 4: Simplify right side
   1,561.27x = 1,733,171.36
5. Step 5: Solve for x
   x = 1,733,171.36/1,561.27
6. Step 6: Final answer
   x = 1,110.11