Finding the Fourth Proportional to 1,290.99, 1,935.33 and 468.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,290.99 : 1,935.33 = 468.69 : x
2. Step 2: Convert to fraction form
   1,290.99/1,935.33 = 468.69/x
3. Step 3: Cross multiply
   1,290.99x = 1,935.33 × 468.69
4. Step 4: Simplify right side
   1,290.99x = 907,071.69
5. Step 5: Solve for x
   x = 907,071.69/1,290.99
6. Step 6: Final answer
   x = 702.62