Finding the Fourth Proportional to 1,493.88, 2,236.71 and 1,127.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,493.88 : 2,236.71 = 1,127.56 : x
2. Step 2: Convert to fraction form
   1,493.88/2,236.71 = 1,127.56/x
3. Step 3: Cross multiply
   1,493.88x = 2,236.71 × 1,127.56
4. Step 4: Simplify right side
   1,493.88x = 2,522,024.73
5. Step 5: Solve for x
   x = 2,522,024.73/1,493.88
6. Step 6: Final answer
   x = 1,688.24