Finding the Fourth Proportional to 2,445.99, 3,669.59 and 985.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,445.99 : 3,669.59 = 985.15 : x
2. Step 2: Convert to fraction form
   2,445.99/3,669.59 = 985.15/x
3. Step 3: Cross multiply
   2,445.99x = 3,669.59 × 985.15
4. Step 4: Simplify right side
   2,445.99x = 3,615,096.59
5. Step 5: Solve for x
   x = 3,615,096.59/2,445.99
6. Step 6: Final answer
   x = 1,477.97