Finding the Fourth Proportional to 1,144.19, 1,577.50 and 875.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,144.19 : 1,577.50 = 875.48 : x
2. Step 2: Convert to fraction form
   1,144.19/1,577.50 = 875.48/x
3. Step 3: Cross multiply
   1,144.19x = 1,577.50 × 875.48
4. Step 4: Simplify right side
   1,144.19x = 1,381,059.62
5. Step 5: Solve for x
   x = 1,381,059.62/1,144.19
6. Step 6: Final answer
   x = 1,207.02