Finding the Fourth Proportional to 1,373.72, 2,057.30 and 713.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,373.72 : 2,057.30 = 713.84 : x
2. Step 2: Convert to fraction form
   1,373.72/2,057.30 = 713.84/x
3. Step 3: Cross multiply
   1,373.72x = 2,057.30 × 713.84
4. Step 4: Simplify right side
   1,373.72x = 1,468,583.03
5. Step 5: Solve for x
   x = 1,468,583.03/1,373.72
6. Step 6: Final answer
   x = 1,069.06