Finding the Fourth Proportional to 1,537.89, 2,122.35 and 874.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,537.89 : 2,122.35 = 874.83 : x
2. Step 2: Convert to fraction form
   1,537.89/2,122.35 = 874.83/x
3. Step 3: Cross multiply
   1,537.89x = 2,122.35 × 874.83
4. Step 4: Simplify right side
   1,537.89x = 1,856,695.45
5. Step 5: Solve for x
   x = 1,856,695.45/1,537.89
6. Step 6: Final answer
   x = 1,207.30