Finding the Fourth Proportional to 1,510.56, 2,073.33 and 1,447.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,510.56 : 2,073.33 = 1,447.20 : x
2. Step 2: Convert to fraction form
   1,510.56/2,073.33 = 1,447.20/x
3. Step 3: Cross multiply
   1,510.56x = 2,073.33 × 1,447.20
4. Step 4: Simplify right side
   1,510.56x = 3,000,523.18
5. Step 5: Solve for x
   x = 3,000,523.18/1,510.56
6. Step 6: Final answer
   x = 1,986.36