Finding the Fourth Proportional to 2,069.96, 3,105.42 and 916.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,069.96 : 3,105.42 = 916.04 : x
2. Step 2: Convert to fraction form
   2,069.96/3,105.42 = 916.04/x
3. Step 3: Cross multiply
   2,069.96x = 3,105.42 × 916.04
4. Step 4: Simplify right side
   2,069.96x = 2,844,688.94
5. Step 5: Solve for x
   x = 2,844,688.94/2,069.96
6. Step 6: Final answer
   x = 1,374.27