Finding the Fourth Proportional to 2,326.40, 3,210.54 and 1,331.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,326.40 : 3,210.54 = 1,331.42 : x
2. Step 2: Convert to fraction form
   2,326.40/3,210.54 = 1,331.42/x
3. Step 3: Cross multiply
   2,326.40x = 3,210.54 × 1,331.42
4. Step 4: Simplify right side
   2,326.40x = 4,274,577.17
5. Step 5: Solve for x
   x = 4,274,577.17/2,326.40
6. Step 6: Final answer
   x = 1,837.42