Finding the Fourth Proportional to 1,612.71, 2,225.57 and 914.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,612.71 : 2,225.57 = 914.09 : x
2. Step 2: Convert to fraction form
   1,612.71/2,225.57 = 914.09/x
3. Step 3: Cross multiply
   1,612.71x = 2,225.57 × 914.09
4. Step 4: Simplify right side
   1,612.71x = 2,034,355.58
5. Step 5: Solve for x
   x = 2,034,355.58/1,612.71
6. Step 6: Final answer
   x = 1,261.45