Finding the Fourth Proportional to 1,783.34, 2,675.42 and 550.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,783.34 : 2,675.42 = 550.72 : x
2. Step 2: Convert to fraction form
   1,783.34/2,675.42 = 550.72/x
3. Step 3: Cross multiply
   1,783.34x = 2,675.42 × 550.72
4. Step 4: Simplify right side
   1,783.34x = 1,473,397.86
5. Step 5: Solve for x
   x = 1,473,397.86/1,783.34
6. Step 6: Final answer
   x = 826.20