Finding the Fourth Proportional to 2,193.56, 3,288.72 and 1,039.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,193.56 : 3,288.72 = 1,039.04 : x
2. Step 2: Convert to fraction form
   2,193.56/3,288.72 = 1,039.04/x
3. Step 3: Cross multiply
   2,193.56x = 3,288.72 × 1,039.04
4. Step 4: Simplify right side
   2,193.56x = 3,417,111.63
5. Step 5: Solve for x
   x = 3,417,111.63/2,193.56
6. Step 6: Final answer
   x = 1,557.79