Finding the Fourth Proportional to 1,788.52, 2,672.56 and 1,340.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,788.52 : 2,672.56 = 1,340.86 : x
2. Step 2: Convert to fraction form
   1,788.52/2,672.56 = 1,340.86/x
3. Step 3: Cross multiply
   1,788.52x = 2,672.56 × 1,340.86
4. Step 4: Simplify right side
   1,788.52x = 3,583,528.80
5. Step 5: Solve for x
   x = 3,583,528.80/1,788.52
6. Step 6: Final answer
   x = 2,003.63