Finding the Fourth Proportional to 2,266.72, 3,126.80 and 1,382.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,266.72 : 3,126.80 = 1,382.72 : x
2. Step 2: Convert to fraction form
   2,266.72/3,126.80 = 1,382.72/x
3. Step 3: Cross multiply
   2,266.72x = 3,126.80 × 1,382.72
4. Step 4: Simplify right side
   2,266.72x = 4,323,488.90
5. Step 5: Solve for x
   x = 4,323,488.90/2,266.72
6. Step 6: Final answer
   x = 1,907.38