Finding the Fourth Proportional to 2,762.34, 3,813.86 and 2,123.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,762.34 : 3,813.86 = 2,123.15 : x
2. Step 2: Convert to fraction form
   2,762.34/3,813.86 = 2,123.15/x
3. Step 3: Cross multiply
   2,762.34x = 3,813.86 × 2,123.15
4. Step 4: Simplify right side
   2,762.34x = 8,097,383.10
5. Step 5: Solve for x
   x = 8,097,383.10/2,762.34
6. Step 6: Final answer
   x = 2,931.35