Finding the Fourth Proportional to 2,637.68, 3,954.17 and 994.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,637.68 : 3,954.17 = 994.29 : x
2. Step 2: Convert to fraction form
   2,637.68/3,954.17 = 994.29/x
3. Step 3: Cross multiply
   2,637.68x = 3,954.17 × 994.29
4. Step 4: Simplify right side
   2,637.68x = 3,931,586.72
5. Step 5: Solve for x
   x = 3,931,586.72/2,637.68
6. Step 6: Final answer
   x = 1,490.55