Finding the Fourth Proportional to 3,893.76, 5,842.16 and 1,814.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,893.76 : 5,842.16 = 1,814.72 : x
2. Step 2: Convert to fraction form
   3,893.76/5,842.16 = 1,814.72/x
3. Step 3: Cross multiply
   3,893.76x = 5,842.16 × 1,814.72
4. Step 4: Simplify right side
   3,893.76x = 10,601,884.60
5. Step 5: Solve for x
   x = 10,601,884.60/3,893.76
6. Step 6: Final answer
   x = 2,722.79