Finding the Fourth Proportional to 1,659.65, 2,290.29 and 1,030.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,659.65 : 2,290.29 = 1,030.43 : x
2. Step 2: Convert to fraction form
   1,659.65/2,290.29 = 1,030.43/x
3. Step 3: Cross multiply
   1,659.65x = 2,290.29 × 1,030.43
4. Step 4: Simplify right side
   1,659.65x = 2,359,978.30
5. Step 5: Solve for x
   x = 2,359,978.30/1,659.65
6. Step 6: Final answer
   x = 1,421.98