Finding the Fourth Proportional to 1,244.79, 1,867.59 and 627.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,244.79 : 1,867.59 = 627.98 : x
2. Step 2: Convert to fraction form
   1,244.79/1,867.59 = 627.98/x
3. Step 3: Cross multiply
   1,244.79x = 1,867.59 × 627.98
4. Step 4: Simplify right side
   1,244.79x = 1,172,799.83
5. Step 5: Solve for x
   x = 1,172,799.83/1,244.79
6. Step 6: Final answer
   x = 942.17