Finding the Fourth Proportional to 1,045.59, 1,565.89 and 605.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,045.59 : 1,565.89 = 605.91 : x
2. Step 2: Convert to fraction form
   1,045.59/1,565.89 = 605.91/x
3. Step 3: Cross multiply
   1,045.59x = 1,565.89 × 605.91
4. Step 4: Simplify right side
   1,045.59x = 948,788.41
5. Step 5: Solve for x
   x = 948,788.41/1,045.59
6. Step 6: Final answer
   x = 907.42