Finding the Fourth Proportional to 3,667.31, 5,500.90 and 893.99

Step by Step Solution

1. Step 1: Write the proportion equation
   3,667.31 : 5,500.90 = 893.99 : x
2. Step 2: Convert to fraction form
   3,667.31/5,500.90 = 893.99/x
3. Step 3: Cross multiply
   3,667.31x = 5,500.90 × 893.99
4. Step 4: Simplify right side
   3,667.31x = 4,917,719.85
5. Step 5: Solve for x
   x = 4,917,719.85/3,667.31
6. Step 6: Final answer
   x = 1,340.96