Finding the Fourth Proportional to 1,928.72, 2,891.31 and 695.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,928.72 : 2,891.31 = 695.84 : x
2. Step 2: Convert to fraction form
   1,928.72/2,891.31 = 695.84/x
3. Step 3: Cross multiply
   1,928.72x = 2,891.31 × 695.84
4. Step 4: Simplify right side
   1,928.72x = 2,011,889.15
5. Step 5: Solve for x
   x = 2,011,889.15/1,928.72
6. Step 6: Final answer
   x = 1,043.12