Finding the Fourth Proportional to 2,513.78, 3,767.49 and 1,127.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,513.78 : 3,767.49 = 1,127.06 : x
2. Step 2: Convert to fraction form
   2,513.78/3,767.49 = 1,127.06/x
3. Step 3: Cross multiply
   2,513.78x = 3,767.49 × 1,127.06
4. Step 4: Simplify right side
   2,513.78x = 4,246,200.59
5. Step 5: Solve for x
   x = 4,246,200.59/2,513.78
6. Step 6: Final answer
   x = 1,689.17