Finding the Fourth Proportional to 2,890.73, 4,338.53 and 1,248.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,890.73 : 4,338.53 = 1,248.52 : x
2. Step 2: Convert to fraction form
   2,890.73/4,338.53 = 1,248.52/x
3. Step 3: Cross multiply
   2,890.73x = 4,338.53 × 1,248.52
4. Step 4: Simplify right side
   2,890.73x = 5,416,741.48
5. Step 5: Solve for x
   x = 5,416,741.48/2,890.73
6. Step 6: Final answer
   x = 1,873.83