Finding the Fourth Proportional to 1,788.02, 2,676.42 and 1,229.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,788.02 : 2,676.42 = 1,229.47 : x
2. Step 2: Convert to fraction form
   1,788.02/2,676.42 = 1,229.47/x
3. Step 3: Cross multiply
   1,788.02x = 2,676.42 × 1,229.47
4. Step 4: Simplify right side
   1,788.02x = 3,290,558.57
5. Step 5: Solve for x
   x = 3,290,558.57/1,788.02
6. Step 6: Final answer
   x = 1,840.34