Finding the Fourth Proportional to 2,111.04, 2,912.85 and 1,326.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.04 : 2,912.85 = 1,326.15 : x
2. Step 2: Convert to fraction form
   2,111.04/2,912.85 = 1,326.15/x
3. Step 3: Cross multiply
   2,111.04x = 2,912.85 × 1,326.15
4. Step 4: Simplify right side
   2,111.04x = 3,862,876.03
5. Step 5: Solve for x
   x = 3,862,876.03/2,111.04
6. Step 6: Final answer
   x = 1,829.85