Finding the Fourth Proportional to 2,670.24, 3,685.20 and 1,491.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,670.24 : 3,685.20 = 1,491.60 : x
2. Step 2: Convert to fraction form
   2,670.24/3,685.20 = 1,491.60/x
3. Step 3: Cross multiply
   2,670.24x = 3,685.20 × 1,491.60
4. Step 4: Simplify right side
   2,670.24x = 5,496,844.32
5. Step 5: Solve for x
   x = 5,496,844.32/2,670.24
6. Step 6: Final answer
   x = 2,058.56