Finding the Fourth Proportional to 2,504.74, 3,456.25 and 1,385.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,504.74 : 3,456.25 = 1,385.53 : x
2. Step 2: Convert to fraction form
   2,504.74/3,456.25 = 1,385.53/x
3. Step 3: Cross multiply
   2,504.74x = 3,456.25 × 1,385.53
4. Step 4: Simplify right side
   2,504.74x = 4,788,725.47
5. Step 5: Solve for x
   x = 4,788,725.47/2,504.74
6. Step 6: Final answer
   x = 1,911.86