Finding the Fourth Proportional to 1,549.58, 2,138.42 and 886.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,549.58 : 2,138.42 = 886.46 : x
2. Step 2: Convert to fraction form
   1,549.58/2,138.42 = 886.46/x
3. Step 3: Cross multiply
   1,549.58x = 2,138.42 × 886.46
4. Step 4: Simplify right side
   1,549.58x = 1,895,615.32
5. Step 5: Solve for x
   x = 1,895,615.32/1,549.58
6. Step 6: Final answer
   x = 1,223.31