Finding the Fourth Proportional to 1,829.72, 2,525.01 and 990.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,829.72 : 2,525.01 = 990.42 : x
2. Step 2: Convert to fraction form
   1,829.72/2,525.01 = 990.42/x
3. Step 3: Cross multiply
   1,829.72x = 2,525.01 × 990.42
4. Step 4: Simplify right side
   1,829.72x = 2,500,802.83
5. Step 5: Solve for x
   x = 2,500,802.83/1,829.72
6. Step 6: Final answer
   x = 1,366.77