Finding the Fourth Proportional to 3,062.18, 4,591.86 and 981.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,062.18 : 4,591.86 = 981.78 : x
2. Step 2: Convert to fraction form
   3,062.18/4,591.86 = 981.78/x
3. Step 3: Cross multiply
   3,062.18x = 4,591.86 × 981.78
4. Step 4: Simplify right side
   3,062.18x = 4,508,196.31
5. Step 5: Solve for x
   x = 4,508,196.31/3,062.18
6. Step 6: Final answer
   x = 1,472.22