Finding the Fourth Proportional to 1,375.04, 1,897.72 and 955.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,375.04 : 1,897.72 = 955.28 : x
2. Step 2: Convert to fraction form
   1,375.04/1,897.72 = 955.28/x
3. Step 3: Cross multiply
   1,375.04x = 1,897.72 × 955.28
4. Step 4: Simplify right side
   1,375.04x = 1,812,853.96
5. Step 5: Solve for x
   x = 1,812,853.96/1,375.04
6. Step 6: Final answer
   x = 1,318.40