Finding the Fourth Proportional to 1,493.17, 2,060.78 and 903.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,493.17 : 2,060.78 = 903.89 : x
2. Step 2: Convert to fraction form
   1,493.17/2,060.78 = 903.89/x
3. Step 3: Cross multiply
   1,493.17x = 2,060.78 × 903.89
4. Step 4: Simplify right side
   1,493.17x = 1,862,719.07
5. Step 5: Solve for x
   x = 1,862,719.07/1,493.17
6. Step 6: Final answer
   x = 1,247.50