Finding the Fourth Proportional to 2,821.89, 4,233.51 and 1,177.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,821.89 : 4,233.51 = 1,177.52 : x
2. Step 2: Convert to fraction form
   2,821.89/4,233.51 = 1,177.52/x
3. Step 3: Cross multiply
   2,821.89x = 4,233.51 × 1,177.52
4. Step 4: Simplify right side
   2,821.89x = 4,985,036.81
5. Step 5: Solve for x
   x = 4,985,036.81/2,821.89
6. Step 6: Final answer
   x = 1,766.56