Finding the Fourth Proportional to 1,301.69, 1,953.72 and 608.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,301.69 : 1,953.72 = 608.77 : x
2. Step 2: Convert to fraction form
   1,301.69/1,953.72 = 608.77/x
3. Step 3: Cross multiply
   1,301.69x = 1,953.72 × 608.77
4. Step 4: Simplify right side
   1,301.69x = 1,189,366.12
5. Step 5: Solve for x
   x = 1,189,366.12/1,301.69
6. Step 6: Final answer
   x = 913.71