Finding the Fourth Proportional to 1,821.72, 2,517.42 and 1,490.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,821.72 : 2,517.42 = 1,490.04 : x
2. Step 2: Convert to fraction form
   1,821.72/2,517.42 = 1,490.04/x
3. Step 3: Cross multiply
   1,821.72x = 2,517.42 × 1,490.04
4. Step 4: Simplify right side
   1,821.72x = 3,751,056.50
5. Step 5: Solve for x
   x = 3,751,056.50/1,821.72
6. Step 6: Final answer
   x = 2,059.07