Finding the Fourth Proportional to 1,877.31, 2,589.89 and 1,214.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,877.31 : 2,589.89 = 1,214.24 : x
2. Step 2: Convert to fraction form
   1,877.31/2,589.89 = 1,214.24/x
3. Step 3: Cross multiply
   1,877.31x = 2,589.89 × 1,214.24
4. Step 4: Simplify right side
   1,877.31x = 3,144,729.01
5. Step 5: Solve for x
   x = 3,144,729.01/1,877.31
6. Step 6: Final answer
   x = 1,675.13