Finding the Fourth Proportional to 2,113.68, 2,917.68 and 1,892.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,113.68 : 2,917.68 = 1,892.22 : x
2. Step 2: Convert to fraction form
   2,113.68/2,917.68 = 1,892.22/x
3. Step 3: Cross multiply
   2,113.68x = 2,917.68 × 1,892.22
4. Step 4: Simplify right side
   2,113.68x = 5,520,892.45
5. Step 5: Solve for x
   x = 5,520,892.45/2,113.68
6. Step 6: Final answer
   x = 2,611.98