Finding the Fourth Proportional to 1,612.50, 2,225.25 and 914.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,612.50 : 2,225.25 = 914.10 : x
2. Step 2: Convert to fraction form
   1,612.50/2,225.25 = 914.10/x
3. Step 3: Cross multiply
   1,612.50x = 2,225.25 × 914.10
4. Step 4: Simplify right side
   1,612.50x = 2,034,101.03
5. Step 5: Solve for x
   x = 2,034,101.03/1,612.50
6. Step 6: Final answer
   x = 1,261.46