Finding the Fourth Proportional to 1,403.35, 2,103.61 and 883.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,403.35 : 2,103.61 = 883.72 : x
2. Step 2: Convert to fraction form
   1,403.35/2,103.61 = 883.72/x
3. Step 3: Cross multiply
   1,403.35x = 2,103.61 × 883.72
4. Step 4: Simplify right side
   1,403.35x = 1,859,002.23
5. Step 5: Solve for x
   x = 1,859,002.23/1,403.35
6. Step 6: Final answer
   x = 1,324.69