Finding the Fourth Proportional to 1,517.62, 2,095.59 and 1,021.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,517.62 : 2,095.59 = 1,021.90 : x
2. Step 2: Convert to fraction form
   1,517.62/2,095.59 = 1,021.90/x
3. Step 3: Cross multiply
   1,517.62x = 2,095.59 × 1,021.90
4. Step 4: Simplify right side
   1,517.62x = 2,141,483.42
5. Step 5: Solve for x
   x = 2,141,483.42/1,517.62
6. Step 6: Final answer
   x = 1,411.08