Finding the Fourth Proportional to 1,612.26, 2,210.42 and 1,583.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,612.26 : 2,210.42 = 1,583.10 : x
2. Step 2: Convert to fraction form
   1,612.26/2,210.42 = 1,583.10/x
3. Step 3: Cross multiply
   1,612.26x = 2,210.42 × 1,583.10
4. Step 4: Simplify right side
   1,612.26x = 3,499,311.57
5. Step 5: Solve for x
   x = 3,499,311.57/1,612.26
6. Step 6: Final answer
   x = 2,170.44