Finding the Fourth Proportional to 2,445.27, 3,667.61 and 713.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,445.27 : 3,667.61 = 713.90 : x
2. Step 2: Convert to fraction form
   2,445.27/3,667.61 = 713.90/x
3. Step 3: Cross multiply
   2,445.27x = 3,667.61 × 713.90
4. Step 4: Simplify right side
   2,445.27x = 2,618,284.87
5. Step 5: Solve for x
   x = 2,618,284.87/2,445.27
6. Step 6: Final answer
   x = 1,070.75