Finding the Fourth Proportional to 1,989.41, 2,969.52 and 1,755.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,989.41 : 2,969.52 = 1,755.89 : x
2. Step 2: Convert to fraction form
   1,989.41/2,969.52 = 1,755.89/x
3. Step 3: Cross multiply
   1,989.41x = 2,969.52 × 1,755.89
4. Step 4: Simplify right side
   1,989.41x = 5,214,157.90
5. Step 5: Solve for x
   x = 5,214,157.90/1,989.41
6. Step 6: Final answer
   x = 2,620.96