Finding the Fourth Proportional to 2,890.35, 4,332.56 and 1,245.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,890.35 : 4,332.56 = 1,245.51 : x
2. Step 2: Convert to fraction form
   2,890.35/4,332.56 = 1,245.51/x
3. Step 3: Cross multiply
   2,890.35x = 4,332.56 × 1,245.51
4. Step 4: Simplify right side
   2,890.35x = 5,396,240.58
5. Step 5: Solve for x
   x = 5,396,240.58/2,890.35
6. Step 6: Final answer
   x = 1,866.99