Finding the Fourth Proportional to 1,619.01, 2,233.98 and 920.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,619.01 : 2,233.98 = 920.25 : x
2. Step 2: Convert to fraction form
   1,619.01/2,233.98 = 920.25/x
3. Step 3: Cross multiply
   1,619.01x = 2,233.98 × 920.25
4. Step 4: Simplify right side
   1,619.01x = 2,055,820.10
5. Step 5: Solve for x
   x = 2,055,820.10/1,619.01
6. Step 6: Final answer
   x = 1,269.80