Finding the Fourth Proportional to 1,574.83, 2,360.52 and 990.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,574.83 : 2,360.52 = 990.25 : x
2. Step 2: Convert to fraction form
   1,574.83/2,360.52 = 990.25/x
3. Step 3: Cross multiply
   1,574.83x = 2,360.52 × 990.25
4. Step 4: Simplify right side
   1,574.83x = 2,337,504.93
5. Step 5: Solve for x
   x = 2,337,504.93/1,574.83
6. Step 6: Final answer
   x = 1,484.29