Finding the Fourth Proportional to 1,783.24, 2,460.54 and 1,145.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,783.24 : 2,460.54 = 1,145.74 : x
2. Step 2: Convert to fraction form
   1,783.24/2,460.54 = 1,145.74/x
3. Step 3: Cross multiply
   1,783.24x = 2,460.54 × 1,145.74
4. Step 4: Simplify right side
   1,783.24x = 2,819,141.86
5. Step 5: Solve for x
   x = 2,819,141.86/1,783.24
6. Step 6: Final answer
   x = 1,580.91