Finding the Fourth Proportional to 2,500.22, 3,748.01 and 856.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,500.22 : 3,748.01 = 856.38 : x
2. Step 2: Convert to fraction form
   2,500.22/3,748.01 = 856.38/x
3. Step 3: Cross multiply
   2,500.22x = 3,748.01 × 856.38
4. Step 4: Simplify right side
   2,500.22x = 3,209,706.18
5. Step 5: Solve for x
   x = 3,209,706.18/2,500.22
6. Step 6: Final answer
   x = 1,283.77