Finding the Fourth Proportional to 1,931.98, 2,896.18 and 1,053.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,931.98 : 2,896.18 = 1,053.18 : x
2. Step 2: Convert to fraction form
   1,931.98/2,896.18 = 1,053.18/x
3. Step 3: Cross multiply
   1,931.98x = 2,896.18 × 1,053.18
4. Step 4: Simplify right side
   1,931.98x = 3,050,198.85
5. Step 5: Solve for x
   x = 3,050,198.85/1,931.98
6. Step 6: Final answer
   x = 1,578.79