Finding the Fourth Proportional to 1,549.34, 2,138.03 and 886.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,549.34 : 2,138.03 = 886.25 : x
2. Step 2: Convert to fraction form
   1,549.34/2,138.03 = 886.25/x
3. Step 3: Cross multiply
   1,549.34x = 2,138.03 × 886.25
4. Step 4: Simplify right side
   1,549.34x = 1,894,833.32
5. Step 5: Solve for x
   x = 1,894,833.32/1,549.34
6. Step 6: Final answer
   x = 1,222.99