Finding the Fourth Proportional to 3,222.90, 4,827.96 and 2,123.93

Step by Step Solution

1. Step 1: Write the proportion equation
   3,222.90 : 4,827.96 = 2,123.93 : x
2. Step 2: Convert to fraction form
   3,222.90/4,827.96 = 2,123.93/x
3. Step 3: Cross multiply
   3,222.90x = 4,827.96 × 2,123.93
4. Step 4: Simplify right side
   3,222.90x = 10,254,261.15
5. Step 5: Solve for x
   x = 10,254,261.15/3,222.90
6. Step 6: Final answer
   x = 3,181.69