Finding the Fourth Proportional to 3,746.34, 5,620.18 and 1,281.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,746.34 : 5,620.18 = 1,281.10 : x
2. Step 2: Convert to fraction form
   3,746.34/5,620.18 = 1,281.10/x
3. Step 3: Cross multiply
   3,746.34x = 5,620.18 × 1,281.10
4. Step 4: Simplify right side
   3,746.34x = 7,200,012.60
5. Step 5: Solve for x
   x = 7,200,012.60/3,746.34
6. Step 6: Final answer
   x = 1,921.88