Finding the Fourth Proportional to 2,105.58, 2,905.92 and 1,174.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105.58 : 2,905.92 = 1,174.08 : x
2. Step 2: Convert to fraction form
   2,105.58/2,905.92 = 1,174.08/x
3. Step 3: Cross multiply
   2,105.58x = 2,905.92 × 1,174.08
4. Step 4: Simplify right side
   2,105.58x = 3,411,782.55
5. Step 5: Solve for x
   x = 3,411,782.55/2,105.58
6. Step 6: Final answer
   x = 1,620.35