Finding the Fourth Proportional to 2,326.89, 3,210.12 and 1,971.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,326.89 : 3,210.12 = 1,971.30 : x
2. Step 2: Convert to fraction form
   2,326.89/3,210.12 = 1,971.30/x
3. Step 3: Cross multiply
   2,326.89x = 3,210.12 × 1,971.30
4. Step 4: Simplify right side
   2,326.89x = 6,328,109.56
5. Step 5: Solve for x
   x = 6,328,109.56/2,326.89
6. Step 6: Final answer
   x = 2,719.56