Finding the Fourth Proportional to 2,100.57, 2,898.81 and 1,169.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.57 : 2,898.81 = 1,169.07 : x
2. Step 2: Convert to fraction form
   2,100.57/2,898.81 = 1,169.07/x
3. Step 3: Cross multiply
   2,100.57x = 2,898.81 × 1,169.07
4. Step 4: Simplify right side
   2,100.57x = 3,388,911.81
5. Step 5: Solve for x
   x = 3,388,911.81/2,100.57
6. Step 6: Final answer
   x = 1,613.33