Finding the Fourth Proportional to 1,111.00, 1,666.50 and 624.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.00 : 1,666.50 = 624.39 : x
2. Step 2: Convert to fraction form
   1,111.00/1,666.50 = 624.39/x
3. Step 3: Cross multiply
   1,111.00x = 1,666.50 × 624.39
4. Step 4: Simplify right side
   1,111.00x = 1,040,546.72
5. Step 5: Solve for x
   x = 1,040,546.72/1,111.00
6. Step 6: Final answer
   x = 936.59