Finding the Fourth Proportional to 2,086.01, 3,128.77 and 624.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086.01 : 3,128.77 = 624.81 : x
2. Step 2: Convert to fraction form
   2,086.01/3,128.77 = 624.81/x
3. Step 3: Cross multiply
   2,086.01x = 3,128.77 × 624.81
4. Step 4: Simplify right side
   2,086.01x = 1,954,886.78
5. Step 5: Solve for x
   x = 1,954,886.78/2,086.01
6. Step 6: Final answer
   x = 937.14