Finding the Fourth Proportional to 1,877.82, 2,589.48 and 1,131.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,877.82 : 2,589.48 = 1,131.63 : x
2. Step 2: Convert to fraction form
   1,877.82/2,589.48 = 1,131.63/x
3. Step 3: Cross multiply
   1,877.82x = 2,589.48 × 1,131.63
4. Step 4: Simplify right side
   1,877.82x = 2,930,333.25
5. Step 5: Solve for x
   x = 2,930,333.25/1,877.82
6. Step 6: Final answer
   x = 1,560.50