Finding the Fourth Proportional to 2,647.98, 3,652.56 and 2,123.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,647.98 : 3,652.56 = 2,123.10 : x
2. Step 2: Convert to fraction form
   2,647.98/3,652.56 = 2,123.10/x
3. Step 3: Cross multiply
   2,647.98x = 3,652.56 × 2,123.10
4. Step 4: Simplify right side
   2,647.98x = 7,754,750.14
5. Step 5: Solve for x
   x = 7,754,750.14/2,647.98
6. Step 6: Final answer
   x = 2,928.55