Finding the Fourth Proportional to 1,665.82, 2,499.47 and 626.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.82 : 2,499.47 = 626.32 : x
2. Step 2: Convert to fraction form
   1,665.82/2,499.47 = 626.32/x
3. Step 3: Cross multiply
   1,665.82x = 2,499.47 × 626.32
4. Step 4: Simplify right side
   1,665.82x = 1,565,468.05
5. Step 5: Solve for x
   x = 1,565,468.05/1,665.82
6. Step 6: Final answer
   x = 939.76