Finding the Fourth Proportional to 1,658.80, 2,475.72 and 1,528.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,658.80 : 2,475.72 = 1,528.56 : x
2. Step 2: Convert to fraction form
   1,658.80/2,475.72 = 1,528.56/x
3. Step 3: Cross multiply
   1,658.80x = 2,475.72 × 1,528.56
4. Step 4: Simplify right side
   1,658.80x = 3,784,286.56
5. Step 5: Solve for x
   x = 3,784,286.56/1,658.80
6. Step 6: Final answer
   x = 2,281.34