Finding the Fourth Proportional to 2,109.29, 3,164.54 and 876.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.29 : 3,164.54 = 876.47 : x
2. Step 2: Convert to fraction form
   2,109.29/3,164.54 = 876.47/x
3. Step 3: Cross multiply
   2,109.29x = 3,164.54 × 876.47
4. Step 4: Simplify right side
   2,109.29x = 2,773,610.74
5. Step 5: Solve for x
   x = 2,773,610.74/2,109.29
6. Step 6: Final answer
   x = 1,314.95