Finding the Fourth Proportional to 1,298.69, 1,947.86 and 604.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,298.69 : 1,947.86 = 604.79 : x
2. Step 2: Convert to fraction form
   1,298.69/1,947.86 = 604.79/x
3. Step 3: Cross multiply
   1,298.69x = 1,947.86 × 604.79
4. Step 4: Simplify right side
   1,298.69x = 1,178,046.25
5. Step 5: Solve for x
   x = 1,178,046.25/1,298.69
6. Step 6: Final answer
   x = 907.10