Finding the Fourth Proportional to 1,689.58, 2,331.69 and 943.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,689.58 : 2,331.69 = 943.53 : x
2. Step 2: Convert to fraction form
   1,689.58/2,331.69 = 943.53/x
3. Step 3: Cross multiply
   1,689.58x = 2,331.69 × 943.53
4. Step 4: Simplify right side
   1,689.58x = 2,200,019.47
5. Step 5: Solve for x
   x = 2,200,019.47/1,689.58
6. Step 6: Final answer
   x = 1,302.11