Finding the Fourth Proportional to 1,499.74, 2,070.59 and 1,028.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.74 : 2,070.59 = 1,028.42 : x
2. Step 2: Convert to fraction form
   1,499.74/2,070.59 = 1,028.42/x
3. Step 3: Cross multiply
   1,499.74x = 2,070.59 × 1,028.42
4. Step 4: Simplify right side
   1,499.74x = 2,129,436.17
5. Step 5: Solve for x
   x = 2,129,436.17/1,499.74
6. Step 6: Final answer
   x = 1,419.87