Finding the Fourth Proportional to 1,375.20, 1,897.29 and 981.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,375.20 : 1,897.29 = 981.54 : x
2. Step 2: Convert to fraction form
   1,375.20/1,897.29 = 981.54/x
3. Step 3: Cross multiply
   1,375.20x = 1,897.29 × 981.54
4. Step 4: Simplify right side
   1,375.20x = 1,862,266.03
5. Step 5: Solve for x
   x = 1,862,266.03/1,375.20
6. Step 6: Final answer
   x = 1,354.18