Finding the Fourth Proportional to 1,171.83, 1,758.02 and 623.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,171.83 : 1,758.02 = 623.89 : x
2. Step 2: Convert to fraction form
   1,171.83/1,758.02 = 623.89/x
3. Step 3: Cross multiply
   1,171.83x = 1,758.02 × 623.89
4. Step 4: Simplify right side
   1,171.83x = 1,096,811.10
5. Step 5: Solve for x
   x = 1,096,811.10/1,171.83
6. Step 6: Final answer
   x = 935.98