Finding the Fourth Proportional to 1,763.61, 2,645.97 and 1,105.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,763.61 : 2,645.97 = 1,105.89 : x
2. Step 2: Convert to fraction form
   1,763.61/2,645.97 = 1,105.89/x
3. Step 3: Cross multiply
   1,763.61x = 2,645.97 × 1,105.89
4. Step 4: Simplify right side
   1,763.61x = 2,926,151.76
5. Step 5: Solve for x
   x = 2,926,151.76/1,763.61
6. Step 6: Final answer
   x = 1,659.18