Finding the Fourth Proportional to 1,543.82, 2,130.67 and 880.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,543.82 : 2,130.67 = 880.52 : x
2. Step 2: Convert to fraction form
   1,543.82/2,130.67 = 880.52/x
3. Step 3: Cross multiply
   1,543.82x = 2,130.67 × 880.52
4. Step 4: Simplify right side
   1,543.82x = 1,876,084.69
5. Step 5: Solve for x
   x = 1,876,084.69/1,543.82
6. Step 6: Final answer
   x = 1,215.23