Finding the Fourth Proportional to 2,276.37, 3,138.89 and 1,803.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,276.37 : 3,138.89 = 1,803.47 : x
2. Step 2: Convert to fraction form
   2,276.37/3,138.89 = 1,803.47/x
3. Step 3: Cross multiply
   2,276.37x = 3,138.89 × 1,803.47
4. Step 4: Simplify right side
   2,276.37x = 5,660,869.24
5. Step 5: Solve for x
   x = 5,660,869.24/2,276.37
6. Step 6: Final answer
   x = 2,486.80