Finding the Fourth Proportional to 6,300.72, 9,448.56 and 1,916.64

Step by Step Solution

1. Step 1: Write the proportion equation
   6,300.72 : 9,448.56 = 1,916.64 : x
2. Step 2: Convert to fraction form
   6,300.72/9,448.56 = 1,916.64/x
3. Step 3: Cross multiply
   6,300.72x = 9,448.56 × 1,916.64
4. Step 4: Simplify right side
   6,300.72x = 18,109,488.04
5. Step 5: Solve for x
   x = 18,109,488.04/6,300.72
6. Step 6: Final answer
   x = 2,874.19