Finding the Fourth Proportional to 2,105.55, 3,157.74 and 625.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105.55 : 3,157.74 = 625.10 : x
2. Step 2: Convert to fraction form
   2,105.55/3,157.74 = 625.10/x
3. Step 3: Cross multiply
   2,105.55x = 3,157.74 × 625.10
4. Step 4: Simplify right side
   2,105.55x = 1,973,887.49
5. Step 5: Solve for x
   x = 1,973,887.49/2,105.55
6. Step 6: Final answer
   x = 937.47