Finding the Fourth Proportional to 2,789.50, 4,181.86 and 1,145.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,789.50 : 4,181.86 = 1,145.02 : x
2. Step 2: Convert to fraction form
   2,789.50/4,181.86 = 1,145.02/x
3. Step 3: Cross multiply
   2,789.50x = 4,181.86 × 1,145.02
4. Step 4: Simplify right side
   2,789.50x = 4,788,313.34
5. Step 5: Solve for x
   x = 4,788,313.34/2,789.50
6. Step 6: Final answer
   x = 1,716.55