Finding the Fourth Proportional to 2,037.60, 3,055.37 and 867.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,037.60 : 3,055.37 = 867.15 : x
2. Step 2: Convert to fraction form
   2,037.60/3,055.37 = 867.15/x
3. Step 3: Cross multiply
   2,037.60x = 3,055.37 × 867.15
4. Step 4: Simplify right side
   2,037.60x = 2,649,459.76
5. Step 5: Solve for x
   x = 2,649,459.76/2,037.60
6. Step 6: Final answer
   x = 1,300.28