Finding the Fourth Proportional to 2,447.34, 3,670.74 and 715.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,447.34 : 3,670.74 = 715.98 : x
2. Step 2: Convert to fraction form
   2,447.34/3,670.74 = 715.98/x
3. Step 3: Cross multiply
   2,447.34x = 3,670.74 × 715.98
4. Step 4: Simplify right side
   2,447.34x = 2,628,176.43
5. Step 5: Solve for x
   x = 2,628,176.43/2,447.34
6. Step 6: Final answer
   x = 1,073.89