Finding the Fourth Proportional to 1,877.24, 2,589.71 and 1,214.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,877.24 : 2,589.71 = 1,214.30 : x
2. Step 2: Convert to fraction form
   1,877.24/2,589.71 = 1,214.30/x
3. Step 3: Cross multiply
   1,877.24x = 2,589.71 × 1,214.30
4. Step 4: Simplify right side
   1,877.24x = 3,144,665.83
5. Step 5: Solve for x
   x = 3,144,665.83/1,877.24
6. Step 6: Final answer
   x = 1,675.16