Finding the Fourth Proportional to 1,375.86, 1,896.80 and 1,332.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,375.86 : 1,896.80 = 1,332.78 : x
2. Step 2: Convert to fraction form
   1,375.86/1,896.80 = 1,332.78/x
3. Step 3: Cross multiply
   1,375.86x = 1,896.80 × 1,332.78
4. Step 4: Simplify right side
   1,375.86x = 2,528,017.10
5. Step 5: Solve for x
   x = 2,528,017.10/1,375.86
6. Step 6: Final answer
   x = 1,837.41