Finding the Fourth Proportional to 2,505.89, 3,753.70 and 1,407.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,505.89 : 3,753.70 = 1,407.95 : x
2. Step 2: Convert to fraction form
   2,505.89/3,753.70 = 1,407.95/x
3. Step 3: Cross multiply
   2,505.89x = 3,753.70 × 1,407.95
4. Step 4: Simplify right side
   2,505.89x = 5,285,021.92
5. Step 5: Solve for x
   x = 5,285,021.92/2,505.89
6. Step 6: Final answer
   x = 2,109.04