Finding the Fourth Proportional to 1,828.69, 2,515.62 and 1,603.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,828.69 : 2,515.62 = 1,603.61 : x
2. Step 2: Convert to fraction form
   1,828.69/2,515.62 = 1,603.61/x
3. Step 3: Cross multiply
   1,828.69x = 2,515.62 × 1,603.61
4. Step 4: Simplify right side
   1,828.69x = 4,034,090.41
5. Step 5: Solve for x
   x = 4,034,090.41/1,828.69
6. Step 6: Final answer
   x = 2,206.00