Finding the Fourth Proportional to 3,061.78, 4,592.94 and 981.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,061.78 : 4,592.94 = 981.88 : x
2. Step 2: Convert to fraction form
   3,061.78/4,592.94 = 981.88/x
3. Step 3: Cross multiply
   3,061.78x = 4,592.94 × 981.88
4. Step 4: Simplify right side
   3,061.78x = 4,509,715.93
5. Step 5: Solve for x
   x = 4,509,715.93/3,061.78
6. Step 6: Final answer
   x = 1,472.91