Finding the Fourth Proportional to 2,891.98, 4,339.28 and 1,136.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,891.98 : 4,339.28 = 1,136.50 : x
2. Step 2: Convert to fraction form
   2,891.98/4,339.28 = 1,136.50/x
3. Step 3: Cross multiply
   2,891.98x = 4,339.28 × 1,136.50
4. Step 4: Simplify right side
   2,891.98x = 4,931,591.72
5. Step 5: Solve for x
   x = 4,931,591.72/2,891.98
6. Step 6: Final answer
   x = 1,705.26