Finding the Fourth Proportional to 3,490.31, 4,815.32 and 1,997.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,490.31 : 4,815.32 = 1,997.69 : x
2. Step 2: Convert to fraction form
   3,490.31/4,815.32 = 1,997.69/x
3. Step 3: Cross multiply
   3,490.31x = 4,815.32 × 1,997.69
4. Step 4: Simplify right side
   3,490.31x = 9,619,482.55
5. Step 5: Solve for x
   x = 9,619,482.55/3,490.31
6. Step 6: Final answer
   x = 2,756.05