Finding the Fourth Proportional to 1,764.86, 2,435.18 and 1,143.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,764.86 : 2,435.18 = 1,143.50 : x
2. Step 2: Convert to fraction form
   1,764.86/2,435.18 = 1,143.50/x
3. Step 3: Cross multiply
   1,764.86x = 2,435.18 × 1,143.50
4. Step 4: Simplify right side
   1,764.86x = 2,784,628.33
5. Step 5: Solve for x
   x = 2,784,628.33/1,764.86
6. Step 6: Final answer
   x = 1,577.82