Finding the Fourth Proportional to 1,559.91, 2,340.72 and 635.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,559.91 : 2,340.72 = 635.56 : x
2. Step 2: Convert to fraction form
   1,559.91/2,340.72 = 635.56/x
3. Step 3: Cross multiply
   1,559.91x = 2,340.72 × 635.56
4. Step 4: Simplify right side
   1,559.91x = 1,487,668.00
5. Step 5: Solve for x
   x = 1,487,668.00/1,559.91
6. Step 6: Final answer
   x = 953.69