Finding the Fourth Proportional to 1,626.62, 2,445.37 and 1,284.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,626.62 : 2,445.37 = 1,284.09 : x
2. Step 2: Convert to fraction form
   1,626.62/2,445.37 = 1,284.09/x
3. Step 3: Cross multiply
   1,626.62x = 2,445.37 × 1,284.09
4. Step 4: Simplify right side
   1,626.62x = 3,140,070.01
5. Step 5: Solve for x
   x = 3,140,070.01/1,626.62
6. Step 6: Final answer
   x = 1,930.42