Finding the Fourth Proportional to 1,865.82, 2,568.70 and 1,616.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,865.82 : 2,568.70 = 1,616.34 : x
2. Step 2: Convert to fraction form
   1,865.82/2,568.70 = 1,616.34/x
3. Step 3: Cross multiply
   1,865.82x = 2,568.70 × 1,616.34
4. Step 4: Simplify right side
   1,865.82x = 4,151,892.56
5. Step 5: Solve for x
   x = 4,151,892.56/1,865.82
6. Step 6: Final answer
   x = 2,225.24