Finding the Fourth Proportional to 3,100.86, 4,279.47 and 1,774.29

Step by Step Solution

1. Step 1: Write the proportion equation
   3,100.86 : 4,279.47 = 1,774.29 : x
2. Step 2: Convert to fraction form
   3,100.86/4,279.47 = 1,774.29/x
3. Step 3: Cross multiply
   3,100.86x = 4,279.47 × 1,774.29
4. Step 4: Simplify right side
   3,100.86x = 7,593,020.83
5. Step 5: Solve for x
   x = 7,593,020.83/3,100.86
6. Step 6: Final answer
   x = 2,448.68