Finding the Fourth Proportional to 1,073.05, 1,607.59 and 586.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,073.05 : 1,607.59 = 586.51 : x
2. Step 2: Convert to fraction form
   1,073.05/1,607.59 = 586.51/x
3. Step 3: Cross multiply
   1,073.05x = 1,607.59 × 586.51
4. Step 4: Simplify right side
   1,073.05x = 942,867.61
5. Step 5: Solve for x
   x = 942,867.61/1,073.05
6. Step 6: Final answer
   x = 878.68