Finding the Fourth Proportional to 1,675.99, 2,311.71 and 1,151.11

Step by Step Solution

1. Step 1: Write the proportion equation
   1,675.99 : 2,311.71 = 1,151.11 : x
2. Step 2: Convert to fraction form
   1,675.99/2,311.71 = 1,151.11/x
3. Step 3: Cross multiply
   1,675.99x = 2,311.71 × 1,151.11
4. Step 4: Simplify right side
   1,675.99x = 2,661,032.50
5. Step 5: Solve for x
   x = 2,661,032.50/1,675.99
6. Step 6: Final answer
   x = 1,587.74