Finding the Fourth Proportional to 2,173.71, 3,261.17 and 713.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,173.71 : 3,261.17 = 713.89 : x
2. Step 2: Convert to fraction form
   2,173.71/3,261.17 = 713.89/x
3. Step 3: Cross multiply
   2,173.71x = 3,261.17 × 713.89
4. Step 4: Simplify right side
   2,173.71x = 2,328,116.65
5. Step 5: Solve for x
   x = 2,328,116.65/2,173.71
6. Step 6: Final answer
   x = 1,071.03