Finding the Fourth Proportional to 1,375.08, 1,897.68 and 1,356.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,375.08 : 1,897.68 = 1,356.72 : x
2. Step 2: Convert to fraction form
   1,375.08/1,897.68 = 1,356.72/x
3. Step 3: Cross multiply
   1,375.08x = 1,897.68 × 1,356.72
4. Step 4: Simplify right side
   1,375.08x = 2,574,620.41
5. Step 5: Solve for x
   x = 2,574,620.41/1,375.08
6. Step 6: Final answer
   x = 1,872.34