Finding the Fourth Proportional to 1,575.55, 2,174.30 and 867.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,575.55 : 2,174.30 = 867.42 : x
2. Step 2: Convert to fraction form
   1,575.55/2,174.30 = 867.42/x
3. Step 3: Cross multiply
   1,575.55x = 2,174.30 × 867.42
4. Step 4: Simplify right side
   1,575.55x = 1,886,030.22
5. Step 5: Solve for x
   x = 1,886,030.22/1,575.55
6. Step 6: Final answer
   x = 1,197.06