Finding the Fourth Proportional to 1,930.91, 2,889.18 and 1,151.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,930.91 : 2,889.18 = 1,151.33 : x
2. Step 2: Convert to fraction form
   1,930.91/2,889.18 = 1,151.33/x
3. Step 3: Cross multiply
   1,930.91x = 2,889.18 × 1,151.33
4. Step 4: Simplify right side
   1,930.91x = 3,326,406.83
5. Step 5: Solve for x
   x = 3,326,406.83/1,930.91
6. Step 6: Final answer
   x = 1,722.72