Finding the Fourth Proportional to 1,575.83, 2,174.69 and 867.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,575.83 : 2,174.69 = 867.74 : x
2. Step 2: Convert to fraction form
   1,575.83/2,174.69 = 867.74/x
3. Step 3: Cross multiply
   1,575.83x = 2,174.69 × 867.74
4. Step 4: Simplify right side
   1,575.83x = 1,887,072.02
5. Step 5: Solve for x
   x = 1,887,072.02/1,575.83
6. Step 6: Final answer
   x = 1,197.51