Finding the Fourth Proportional to 2,019.90, 3,030.22 and 924.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.90 : 3,030.22 = 924.38 : x
2. Step 2: Convert to fraction form
   2,019.90/3,030.22 = 924.38/x
3. Step 3: Cross multiply
   2,019.90x = 3,030.22 × 924.38
4. Step 4: Simplify right side
   2,019.90x = 2,801,074.76
5. Step 5: Solve for x
   x = 2,801,074.76/2,019.90
6. Step 6: Final answer
   x = 1,386.74