Finding the Fourth Proportional to 1,759.45, 2,640.80 and 1,210.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,759.45 : 2,640.80 = 1,210.27 : x
2. Step 2: Convert to fraction form
   1,759.45/2,640.80 = 1,210.27/x
3. Step 3: Cross multiply
   1,759.45x = 2,640.80 × 1,210.27
4. Step 4: Simplify right side
   1,759.45x = 3,196,081.02
5. Step 5: Solve for x
   x = 3,196,081.02/1,759.45
6. Step 6: Final answer
   x = 1,816.52