Finding the Fourth Proportional to 2,111.50, 2,913.87 and 1,283.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.50 : 2,913.87 = 1,283.50 : x
2. Step 2: Convert to fraction form
   2,111.50/2,913.87 = 1,283.50/x
3. Step 3: Cross multiply
   2,111.50x = 2,913.87 × 1,283.50
4. Step 4: Simplify right side
   2,111.50x = 3,739,952.15
5. Step 5: Solve for x
   x = 3,739,952.15/2,111.50
6. Step 6: Final answer
   x = 1,771.23