Finding the Fourth Proportional to 1,665.94, 2,498.22 and 625.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.94 : 2,498.22 = 625.62 : x
2. Step 2: Convert to fraction form
   1,665.94/2,498.22 = 625.62/x
3. Step 3: Cross multiply
   1,665.94x = 2,498.22 × 625.62
4. Step 4: Simplify right side
   1,665.94x = 1,562,936.40
5. Step 5: Solve for x
   x = 1,562,936.40/1,665.94
6. Step 6: Final answer
   x = 938.17