Finding the Fourth Proportional to 2,045.34, 3,072.56 and 1,265.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,045.34 : 3,072.56 = 1,265.91 : x
2. Step 2: Convert to fraction form
   2,045.34/3,072.56 = 1,265.91/x
3. Step 3: Cross multiply
   2,045.34x = 3,072.56 × 1,265.91
4. Step 4: Simplify right side
   2,045.34x = 3,889,584.43
5. Step 5: Solve for x
   x = 3,889,584.43/2,045.34
6. Step 6: Final answer
   x = 1,901.68