Finding the Fourth Proportional to 1,658.96, 2,290.61 and 1,359.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,658.96 : 2,290.61 = 1,359.76 : x
2. Step 2: Convert to fraction form
   1,658.96/2,290.61 = 1,359.76/x
3. Step 3: Cross multiply
   1,658.96x = 2,290.61 × 1,359.76
4. Step 4: Simplify right side
   1,658.96x = 3,114,679.85
5. Step 5: Solve for x
   x = 3,114,679.85/1,658.96
6. Step 6: Final answer
   x = 1,877.49