Finding the Fourth Proportional to 1,991.58, 2,982.50 and 1,340.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,991.58 : 2,982.50 = 1,340.34 : x
2. Step 2: Convert to fraction form
   1,991.58/2,982.50 = 1,340.34/x
3. Step 3: Cross multiply
   1,991.58x = 2,982.50 × 1,340.34
4. Step 4: Simplify right side
   1,991.58x = 3,997,564.05
5. Step 5: Solve for x
   x = 3,997,564.05/1,991.58
6. Step 6: Final answer
   x = 2,007.23