Finding the Fourth Proportional to 1,822.72, 2,515.84 and 1,036.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,822.72 : 2,515.84 = 1,036.80 : x
2. Step 2: Convert to fraction form
   1,822.72/2,515.84 = 1,036.80/x
3. Step 3: Cross multiply
   1,822.72x = 2,515.84 × 1,036.80
4. Step 4: Simplify right side
   1,822.72x = 2,608,422.91
5. Step 5: Solve for x
   x = 2,608,422.91/1,822.72
6. Step 6: Final answer
   x = 1,431.06