Finding the Fourth Proportional to 2,300.78, 3,175.80 and 1,356.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,300.78 : 3,175.80 = 1,356.52 : x
2. Step 2: Convert to fraction form
   2,300.78/3,175.80 = 1,356.52/x
3. Step 3: Cross multiply
   2,300.78x = 3,175.80 × 1,356.52
4. Step 4: Simplify right side
   2,300.78x = 4,308,036.22
5. Step 5: Solve for x
   x = 4,308,036.22/2,300.78
6. Step 6: Final answer
   x = 1,872.42