Finding the Fourth Proportional to 1,171.40, 1,758.15 and 624.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,171.40 : 1,758.15 = 624.04 : x
2. Step 2: Convert to fraction form
   1,171.40/1,758.15 = 624.04/x
3. Step 3: Cross multiply
   1,171.40x = 1,758.15 × 624.04
4. Step 4: Simplify right side
   1,171.40x = 1,097,151.53
5. Step 5: Solve for x
   x = 1,097,151.53/1,171.40
6. Step 6: Final answer
   x = 936.62