Finding the Fourth Proportional to 1,290.48, 1,935.42 and 596.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,290.48 : 1,935.42 = 596.72 : x
2. Step 2: Convert to fraction form
   1,290.48/1,935.42 = 596.72/x
3. Step 3: Cross multiply
   1,290.48x = 1,935.42 × 596.72
4. Step 4: Simplify right side
   1,290.48x = 1,154,903.82
5. Step 5: Solve for x
   x = 1,154,903.82/1,290.48
6. Step 6: Final answer
   x = 894.94