Finding the Fourth Proportional to 2,105.13, 2,905.41 and 1,655.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105.13 : 2,905.41 = 1,655.98 : x
2. Step 2: Convert to fraction form
   2,105.13/2,905.41 = 1,655.98/x
3. Step 3: Cross multiply
   2,105.13x = 2,905.41 × 1,655.98
4. Step 4: Simplify right side
   2,105.13x = 4,811,300.85
5. Step 5: Solve for x
   x = 4,811,300.85/2,105.13
6. Step 6: Final answer
   x = 2,285.51