Finding the Fourth Proportional to 2,672.80, 3,688.47 and 1,493.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,672.80 : 3,688.47 = 1,493.91 : x
2. Step 2: Convert to fraction form
   2,672.80/3,688.47 = 1,493.91/x
3. Step 3: Cross multiply
   2,672.80x = 3,688.47 × 1,493.91
4. Step 4: Simplify right side
   2,672.80x = 5,510,242.22
5. Step 5: Solve for x
   x = 5,510,242.22/2,672.80
6. Step 6: Final answer
   x = 2,061.60