Finding the Fourth Proportional to 1,375.47, 1,897.49 and 903.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,375.47 : 1,897.49 = 903.17 : x
2. Step 2: Convert to fraction form
   1,375.47/1,897.49 = 903.17/x
3. Step 3: Cross multiply
   1,375.47x = 1,897.49 × 903.17
4. Step 4: Simplify right side
   1,375.47x = 1,713,763.04
5. Step 5: Solve for x
   x = 1,713,763.04/1,375.47
6. Step 6: Final answer
   x = 1,245.95