Finding the Fourth Proportional to 2,223.35, 3,337.08 and 1,128.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,223.35 : 3,337.08 = 1,128.50 : x
2. Step 2: Convert to fraction form
   2,223.35/3,337.08 = 1,128.50/x
3. Step 3: Cross multiply
   2,223.35x = 3,337.08 × 1,128.50
4. Step 4: Simplify right side
   2,223.35x = 3,765,894.78
5. Step 5: Solve for x
   x = 3,765,894.78/2,223.35
6. Step 6: Final answer
   x = 1,693.79