Finding the Fourth Proportional to 2,233.20, 3,342.78 and 1,535.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,233.20 : 3,342.78 = 1,535.78 : x
2. Step 2: Convert to fraction form
   2,233.20/3,342.78 = 1,535.78/x
3. Step 3: Cross multiply
   2,233.20x = 3,342.78 × 1,535.78
4. Step 4: Simplify right side
   2,233.20x = 5,133,774.67
5. Step 5: Solve for x
   x = 5,133,774.67/2,233.20
6. Step 6: Final answer
   x = 2,298.84