Finding the Fourth Proportional to 1,418.52, 2,125.37 and 869.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,418.52 : 2,125.37 = 869.55 : x
2. Step 2: Convert to fraction form
   1,418.52/2,125.37 = 869.55/x
3. Step 3: Cross multiply
   1,418.52x = 2,125.37 × 869.55
4. Step 4: Simplify right side
   1,418.52x = 1,848,111.14
5. Step 5: Solve for x
   x = 1,848,111.14/1,418.52
6. Step 6: Final answer
   x = 1,302.84