Finding the Fourth Proportional to 3,886.63, 5,364.05 and 2,314.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,886.63 : 5,364.05 = 2,314.72 : x
2. Step 2: Convert to fraction form
   3,886.63/5,364.05 = 2,314.72/x
3. Step 3: Cross multiply
   3,886.63x = 5,364.05 × 2,314.72
4. Step 4: Simplify right side
   3,886.63x = 12,416,273.82
5. Step 5: Solve for x
   x = 12,416,273.82/3,886.63
6. Step 6: Final answer
   x = 3,194.61