Finding the Fourth Proportional to 2,056.42, 3,084.56 and 902.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,056.42 : 3,084.56 = 902.18 : x
2. Step 2: Convert to fraction form
   2,056.42/3,084.56 = 902.18/x
3. Step 3: Cross multiply
   2,056.42x = 3,084.56 × 902.18
4. Step 4: Simplify right side
   2,056.42x = 2,782,828.34
5. Step 5: Solve for x
   x = 2,782,828.34/2,056.42
6. Step 6: Final answer
   x = 1,353.24