Finding the Fourth Proportional to 3,746.88, 5,620.83 and 1,281.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,746.88 : 5,620.83 = 1,281.06 : x
2. Step 2: Convert to fraction form
   3,746.88/5,620.83 = 1,281.06/x
3. Step 3: Cross multiply
   3,746.88x = 5,620.83 × 1,281.06
4. Step 4: Simplify right side
   3,746.88x = 7,200,620.48
5. Step 5: Solve for x
   x = 7,200,620.48/3,746.88
6. Step 6: Final answer
   x = 1,921.76