Finding the Fourth Proportional to 2,013.31, 2,778.52 and 1,117.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,013.31 : 2,778.52 = 1,117.33 : x
2. Step 2: Convert to fraction form
   2,013.31/2,778.52 = 1,117.33/x
3. Step 3: Cross multiply
   2,013.31x = 2,778.52 × 1,117.33
4. Step 4: Simplify right side
   2,013.31x = 3,104,516.11
5. Step 5: Solve for x
   x = 3,104,516.11/2,013.31
6. Step 6: Final answer
   x = 1,542.00