Finding the Fourth Proportional to 1,510.45, 2,264.19 and 1,387.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,510.45 : 2,264.19 = 1,387.43 : x
2. Step 2: Convert to fraction form
   1,510.45/2,264.19 = 1,387.43/x
3. Step 3: Cross multiply
   1,510.45x = 2,264.19 × 1,387.43
4. Step 4: Simplify right side
   1,510.45x = 3,141,397.10
5. Step 5: Solve for x
   x = 3,141,397.10/1,510.45
6. Step 6: Final answer
   x = 2,079.78