Finding the Fourth Proportional to 2,342.15, 3,513.85 and 1,109.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,342.15 : 3,513.85 = 1,109.53 : x
2. Step 2: Convert to fraction form
   2,342.15/3,513.85 = 1,109.53/x
3. Step 3: Cross multiply
   2,342.15x = 3,513.85 × 1,109.53
4. Step 4: Simplify right side
   2,342.15x = 3,898,723.61
5. Step 5: Solve for x
   x = 3,898,723.61/2,342.15
6. Step 6: Final answer
   x = 1,664.59