Finding the Fourth Proportional to 2,476.69, 3,712.41 and 915.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,476.69 : 3,712.41 = 915.69 : x
2. Step 2: Convert to fraction form
   2,476.69/3,712.41 = 915.69/x
3. Step 3: Cross multiply
   2,476.69x = 3,712.41 × 915.69
4. Step 4: Simplify right side
   2,476.69x = 3,399,412.33
5. Step 5: Solve for x
   x = 3,399,412.33/2,476.69
6. Step 6: Final answer
   x = 1,372.56