Finding the Fourth Proportional to 1,975.52, 2,726.69 and 1,189.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,975.52 : 2,726.69 = 1,189.42 : x
2. Step 2: Convert to fraction form
   1,975.52/2,726.69 = 1,189.42/x
3. Step 3: Cross multiply
   1,975.52x = 2,726.69 × 1,189.42
4. Step 4: Simplify right side
   1,975.52x = 3,243,166.86
5. Step 5: Solve for x
   x = 3,243,166.86/1,975.52
6. Step 6: Final answer
   x = 1,641.68