Finding the Fourth Proportional to 2,105.01, 2,904.89 and 1,173.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105.01 : 2,904.89 = 1,173.51 : x
2. Step 2: Convert to fraction form
   2,105.01/2,904.89 = 1,173.51/x
3. Step 3: Cross multiply
   2,105.01x = 2,904.89 × 1,173.51
4. Step 4: Simplify right side
   2,105.01x = 3,408,911.60
5. Step 5: Solve for x
   x = 3,408,911.60/2,105.01
6. Step 6: Final answer
   x = 1,619.43