Finding the Fourth Proportional to 2,855.35, 4,280.18 and 1,296.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,855.35 : 4,280.18 = 1,296.50 : x
2. Step 2: Convert to fraction form
   2,855.35/4,280.18 = 1,296.50/x
3. Step 3: Cross multiply
   2,855.35x = 4,280.18 × 1,296.50
4. Step 4: Simplify right side
   2,855.35x = 5,549,253.37
5. Step 5: Solve for x
   x = 5,549,253.37/2,855.35
6. Step 6: Final answer
   x = 1,943.46