Finding the Fourth Proportional to 2,349.58, 3,242.55 and 1,287.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,349.58 : 3,242.55 = 1,287.46 : x
2. Step 2: Convert to fraction form
   2,349.58/3,242.55 = 1,287.46/x
3. Step 3: Cross multiply
   2,349.58x = 3,242.55 × 1,287.46
4. Step 4: Simplify right side
   2,349.58x = 4,174,653.42
5. Step 5: Solve for x
   x = 4,174,653.42/2,349.58
6. Step 6: Final answer
   x = 1,776.77