Finding the Fourth Proportional to 1,836.68, 2,535.89 and 1,240.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,836.68 : 2,535.89 = 1,240.08 : x
2. Step 2: Convert to fraction form
   1,836.68/2,535.89 = 1,240.08/x
3. Step 3: Cross multiply
   1,836.68x = 2,535.89 × 1,240.08
4. Step 4: Simplify right side
   1,836.68x = 3,144,706.47
5. Step 5: Solve for x
   x = 3,144,706.47/1,836.68
6. Step 6: Final answer
   x = 1,712.17