Finding the Fourth Proportional to 2,111.02, 2,913.26 and 1,226.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.02 : 2,913.26 = 1,226.50 : x
2. Step 2: Convert to fraction form
   2,111.02/2,913.26 = 1,226.50/x
3. Step 3: Cross multiply
   2,111.02x = 2,913.26 × 1,226.50
4. Step 4: Simplify right side
   2,111.02x = 3,573,113.39
5. Step 5: Solve for x
   x = 3,573,113.39/2,111.02
6. Step 6: Final answer
   x = 1,692.60