Finding the Fourth Proportional to 3,746.68, 5,619.86 and 1,281.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,746.68 : 5,619.86 = 1,281.72 : x
2. Step 2: Convert to fraction form
   3,746.68/5,619.86 = 1,281.72/x
3. Step 3: Cross multiply
   3,746.68x = 5,619.86 × 1,281.72
4. Step 4: Simplify right side
   3,746.68x = 7,203,086.96
5. Step 5: Solve for x
   x = 7,203,086.96/3,746.68
6. Step 6: Final answer
   x = 1,922.53