Finding the Fourth Proportional to 2,726.34, 4,085.46 and 1,407.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,726.34 : 4,085.46 = 1,407.12 : x
2. Step 2: Convert to fraction form
   2,726.34/4,085.46 = 1,407.12/x
3. Step 3: Cross multiply
   2,726.34x = 4,085.46 × 1,407.12
4. Step 4: Simplify right side
   2,726.34x = 5,748,732.48
5. Step 5: Solve for x
   x = 5,748,732.48/2,726.34
6. Step 6: Final answer
   x = 2,108.59