Finding the Fourth Proportional to 1,158.30, 1,738.67 and 610.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,158.30 : 1,738.67 = 610.34 : x
2. Step 2: Convert to fraction form
   1,158.30/1,738.67 = 610.34/x
3. Step 3: Cross multiply
   1,158.30x = 1,738.67 × 610.34
4. Step 4: Simplify right side
   1,158.30x = 1,061,168.10
5. Step 5: Solve for x
   x = 1,061,168.10/1,158.30
6. Step 6: Final answer
   x = 916.14