Finding the Fourth Proportional to 2,088.42, 3,131.72 and 627.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,088.42 : 3,131.72 = 627.30 : x
2. Step 2: Convert to fraction form
   2,088.42/3,131.72 = 627.30/x
3. Step 3: Cross multiply
   2,088.42x = 3,131.72 × 627.30
4. Step 4: Simplify right side
   2,088.42x = 1,964,527.96
5. Step 5: Solve for x
   x = 1,964,527.96/2,088.42
6. Step 6: Final answer
   x = 940.68