Finding the Fourth Proportional to 2,490.52, 3,735.86 and 824.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,490.52 : 3,735.86 = 824.64 : x
2. Step 2: Convert to fraction form
   2,490.52/3,735.86 = 824.64/x
3. Step 3: Cross multiply
   2,490.52x = 3,735.86 × 824.64
4. Step 4: Simplify right side
   2,490.52x = 3,080,739.59
5. Step 5: Solve for x
   x = 3,080,739.59/2,490.52
6. Step 6: Final answer
   x = 1,236.99