Finding the Fourth Proportional to 2,087.02, 3,130.83 and 626.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087.02 : 3,130.83 = 626.28 : x
2. Step 2: Convert to fraction form
   2,087.02/3,130.83 = 626.28/x
3. Step 3: Cross multiply
   2,087.02x = 3,130.83 × 626.28
4. Step 4: Simplify right side
   2,087.02x = 1,960,782.47
5. Step 5: Solve for x
   x = 1,960,782.47/2,087.02
6. Step 6: Final answer
   x = 939.52