Finding the Fourth Proportional to 1,510.48, 2,083.96 and 880.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,510.48 : 2,083.96 = 880.72 : x
2. Step 2: Convert to fraction form
   1,510.48/2,083.96 = 880.72/x
3. Step 3: Cross multiply
   1,510.48x = 2,083.96 × 880.72
4. Step 4: Simplify right side
   1,510.48x = 1,835,385.25
5. Step 5: Solve for x
   x = 1,835,385.25/1,510.48
6. Step 6: Final answer
   x = 1,215.10