Finding the Fourth Proportional to 1,829.42, 2,524.60 and 990.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,829.42 : 2,524.60 = 990.12 : x
2. Step 2: Convert to fraction form
   1,829.42/2,524.60 = 990.12/x
3. Step 3: Cross multiply
   1,829.42x = 2,524.60 × 990.12
4. Step 4: Simplify right side
   1,829.42x = 2,499,665.83
5. Step 5: Solve for x
   x = 2,499,665.83/1,829.42
6. Step 6: Final answer
   x = 1,366.37