Finding the Fourth Proportional to 1,920.52, 2,661.75 and 1,885.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,920.52 : 2,661.75 = 1,885.96 : x
2. Step 2: Convert to fraction form
   1,920.52/2,661.75 = 1,885.96/x
3. Step 3: Cross multiply
   1,920.52x = 2,661.75 × 1,885.96
4. Step 4: Simplify right side
   1,920.52x = 5,019,954.03
5. Step 5: Solve for x
   x = 5,019,954.03/1,920.52
6. Step 6: Final answer
   x = 2,613.85