Finding the Fourth Proportional to 2,108.04, 3,160.44 and 1,285.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,108.04 : 3,160.44 = 1,285.89 : x
2. Step 2: Convert to fraction form
   2,108.04/3,160.44 = 1,285.89/x
3. Step 3: Cross multiply
   2,108.04x = 3,160.44 × 1,285.89
4. Step 4: Simplify right side
   2,108.04x = 4,063,978.19
5. Step 5: Solve for x
   x = 4,063,978.19/2,108.04
6. Step 6: Final answer
   x = 1,927.85