Finding the Fourth Proportional to 2,485.34, 3,726.79 and 1,445.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,485.34 : 3,726.79 = 1,445.70 : x
2. Step 2: Convert to fraction form
   2,485.34/3,726.79 = 1,445.70/x
3. Step 3: Cross multiply
   2,485.34x = 3,726.79 × 1,445.70
4. Step 4: Simplify right side
   2,485.34x = 5,387,820.30
5. Step 5: Solve for x
   x = 5,387,820.30/2,485.34
6. Step 6: Final answer
   x = 2,167.84