Finding the Fourth Proportional to 2,111.60, 3,165.60 and 1,493.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.60 : 3,165.60 = 1,493.36 : x
2. Step 2: Convert to fraction form
   2,111.60/3,165.60 = 1,493.36/x
3. Step 3: Cross multiply
   2,111.60x = 3,165.60 × 1,493.36
4. Step 4: Simplify right side
   2,111.60x = 4,727,380.42
5. Step 5: Solve for x
   x = 4,727,380.42/2,111.60
6. Step 6: Final answer
   x = 2,238.77