Finding the Fourth Proportional to 1,366.58, 1,885.59 and 842.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,366.58 : 1,885.59 = 842.51 : x
2. Step 2: Convert to fraction form
   1,366.58/1,885.59 = 842.51/x
3. Step 3: Cross multiply
   1,366.58x = 1,885.59 × 842.51
4. Step 4: Simplify right side
   1,366.58x = 1,588,619.00
5. Step 5: Solve for x
   x = 1,588,619.00/1,366.58
6. Step 6: Final answer
   x = 1,162.48