Finding the Fourth Proportional to 2,265.52, 3,126.50 and 1,380.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,265.52 : 3,126.50 = 1,380.69 : x
2. Step 2: Convert to fraction form
   2,265.52/3,126.50 = 1,380.69/x
3. Step 3: Cross multiply
   2,265.52x = 3,126.50 × 1,380.69
4. Step 4: Simplify right side
   2,265.52x = 4,316,727.29
5. Step 5: Solve for x
   x = 4,316,727.29/2,265.52
6. Step 6: Final answer
   x = 1,905.40