Finding the Fourth Proportional to 1,174.10, 1,758.38 and 930.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,174.10 : 1,758.38 = 930.76 : x
2. Step 2: Convert to fraction form
   1,174.10/1,758.38 = 930.76/x
3. Step 3: Cross multiply
   1,174.10x = 1,758.38 × 930.76
4. Step 4: Simplify right side
   1,174.10x = 1,636,620.72
5. Step 5: Solve for x
   x = 1,636,620.72/1,174.10
6. Step 6: Final answer
   x = 1,393.94