Finding the Fourth Proportional to 2,300.96, 3,174.78 and 1,356.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,300.96 : 3,174.78 = 1,356.80 : x
2. Step 2: Convert to fraction form
   2,300.96/3,174.78 = 1,356.80/x
3. Step 3: Cross multiply
   2,300.96x = 3,174.78 × 1,356.80
4. Step 4: Simplify right side
   2,300.96x = 4,307,525.63
5. Step 5: Solve for x
   x = 4,307,525.63/2,300.96
6. Step 6: Final answer
   x = 1,872.05