Finding the Fourth Proportional to 1,335.77, 1,841.15 and 893.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,335.77 : 1,841.15 = 893.51 : x
2. Step 2: Convert to fraction form
   1,335.77/1,841.15 = 893.51/x
3. Step 3: Cross multiply
   1,335.77x = 1,841.15 × 893.51
4. Step 4: Simplify right side
   1,335.77x = 1,645,085.94
5. Step 5: Solve for x
   x = 1,645,085.94/1,335.77
6. Step 6: Final answer
   x = 1,231.56