Finding the Fourth Proportional to 2,888.31, 4,332.49 and 697.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,888.31 : 4,332.49 = 697.06 : x
2. Step 2: Convert to fraction form
   2,888.31/4,332.49 = 697.06/x
3. Step 3: Cross multiply
   2,888.31x = 4,332.49 × 697.06
4. Step 4: Simplify right side
   2,888.31x = 3,019,984.78
5. Step 5: Solve for x
   x = 3,019,984.78/2,888.31
6. Step 6: Final answer
   x = 1,045.59