Finding the Fourth Proportional to 5,061.16, 7,591.76 and 1,981

Step by Step Solution

1. Step 1: Write the proportion equation
   5,061.16 : 7,591.76 = 1,981 : x
2. Step 2: Convert to fraction form
   5,061.16/7,591.76 = 1,981/x
3. Step 3: Cross multiply
   5,061.16x = 7,591.76 × 1,981
4. Step 4: Simplify right side
   5,061.16x = 15,039,276.56
5. Step 5: Solve for x
   x = 15,039,276.56/5,061.16
6. Step 6: Final answer
   x = 2,971.51