Finding the Fourth Proportional to 1,510.70, 2,082.58 and 1,061.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,510.70 : 2,082.58 = 1,061.20 : x
2. Step 2: Convert to fraction form
   1,510.70/2,082.58 = 1,061.20/x
3. Step 3: Cross multiply
   1,510.70x = 2,082.58 × 1,061.20
4. Step 4: Simplify right side
   1,510.70x = 2,210,026.04
5. Step 5: Solve for x
   x = 2,210,026.04/1,510.70
6. Step 6: Final answer
   x = 1,462.92