Finding the Fourth Proportional to 1,074.72, 1,610.30 and 588.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,074.72 : 1,610.30 = 588.18 : x
2. Step 2: Convert to fraction form
   1,074.72/1,610.30 = 588.18/x
3. Step 3: Cross multiply
   1,074.72x = 1,610.30 × 588.18
4. Step 4: Simplify right side
   1,074.72x = 947,146.25
5. Step 5: Solve for x
   x = 947,146.25/1,074.72
6. Step 6: Final answer
   x = 881.30