Finding the Fourth Proportional to 3,755.15, 5,632.72 and 981.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,755.15 : 5,632.72 = 981.81 : x
2. Step 2: Convert to fraction form
   3,755.15/5,632.72 = 981.81/x
3. Step 3: Cross multiply
   3,755.15x = 5,632.72 × 981.81
4. Step 4: Simplify right side
   3,755.15x = 5,530,260.82
5. Step 5: Solve for x
   x = 5,530,260.82/3,755.15
6. Step 6: Final answer
   x = 1,472.71