Finding the Fourth Proportional to 1,864.20, 2,793.72 and 1,793.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,864.20 : 2,793.72 = 1,793.18 : x
2. Step 2: Convert to fraction form
   1,864.20/2,793.72 = 1,793.18/x
3. Step 3: Cross multiply
   1,864.20x = 2,793.72 × 1,793.18
4. Step 4: Simplify right side
   1,864.20x = 5,009,642.83
5. Step 5: Solve for x
   x = 5,009,642.83/1,864.20
6. Step 6: Final answer
   x = 2,687.29