Finding the Fourth Proportional to 2,606.74, 3,915.99 and 1,513.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,606.74 : 3,915.99 = 1,513.78 : x
2. Step 2: Convert to fraction form
   2,606.74/3,915.99 = 1,513.78/x
3. Step 3: Cross multiply
   2,606.74x = 3,915.99 × 1,513.78
4. Step 4: Simplify right side
   2,606.74x = 5,927,947.34
5. Step 5: Solve for x
   x = 5,927,947.34/2,606.74
6. Step 6: Final answer
   x = 2,274.08