Finding the Fourth Proportional to 2,312.51, 3,468.89 and 669.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,312.51 : 3,468.89 = 669.29 : x
2. Step 2: Convert to fraction form
   2,312.51/3,468.89 = 669.29/x
3. Step 3: Cross multiply
   2,312.51x = 3,468.89 × 669.29
4. Step 4: Simplify right side
   2,312.51x = 2,321,677.72
5. Step 5: Solve for x
   x = 2,321,677.72/2,312.51
6. Step 6: Final answer
   x = 1,003.97