Finding the Fourth Proportional to 1,645.52, 2,270.52 and 1,426.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,645.52 : 2,270.52 = 1,426.16 : x
2. Step 2: Convert to fraction form
   1,645.52/2,270.52 = 1,426.16/x
3. Step 3: Cross multiply
   1,645.52x = 2,270.52 × 1,426.16
4. Step 4: Simplify right side
   1,645.52x = 3,238,124.80
5. Step 5: Solve for x
   x = 3,238,124.80/1,645.52
6. Step 6: Final answer
   x = 1,967.84