Finding the Fourth Proportional to 1,969.92, 2,969.82 and 1,864.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,969.92 : 2,969.82 = 1,864.08 : x
2. Step 2: Convert to fraction form
   1,969.92/2,969.82 = 1,864.08/x
3. Step 3: Cross multiply
   1,969.92x = 2,969.82 × 1,864.08
4. Step 4: Simplify right side
   1,969.92x = 5,535,982.07
5. Step 5: Solve for x
   x = 5,535,982.07/1,969.92
6. Step 6: Final answer
   x = 2,810.26