Finding the Fourth Proportional to 3,670.47, 5,064.03 and 2,076.90

Step by Step Solution

1. Step 1: Write the proportion equation
   3,670.47 : 5,064.03 = 2,076.90 : x
2. Step 2: Convert to fraction form
   3,670.47/5,064.03 = 2,076.90/x
3. Step 3: Cross multiply
   3,670.47x = 5,064.03 × 2,076.90
4. Step 4: Simplify right side
   3,670.47x = 10,517,473.52
5. Step 5: Solve for x
   x = 10,517,473.52/3,670.47
6. Step 6: Final answer
   x = 2,865.43