Finding the Fourth Proportional to 1,801.28, 2,699.22 and 1,253.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,801.28 : 2,699.22 = 1,253.18 : x
2. Step 2: Convert to fraction form
   1,801.28/2,699.22 = 1,253.18/x
3. Step 3: Cross multiply
   1,801.28x = 2,699.22 × 1,253.18
4. Step 4: Simplify right side
   1,801.28x = 3,382,608.52
5. Step 5: Solve for x
   x = 3,382,608.52/1,801.28
6. Step 6: Final answer
   x = 1,877.89