Finding the Fourth Proportional to 3,488.69, 4,814.30 and 1,916.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,488.69 : 4,814.30 = 1,916.79 : x
2. Step 2: Convert to fraction form
   3,488.69/4,814.30 = 1,916.79/x
3. Step 3: Cross multiply
   3,488.69x = 4,814.30 × 1,916.79
4. Step 4: Simplify right side
   3,488.69x = 9,228,002.10
5. Step 5: Solve for x
   x = 9,228,002.10/3,488.69
6. Step 6: Final answer
   x = 2,645.12