Finding the Fourth Proportional to 2,372.52, 3,558.66 and 985.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,372.52 : 3,558.66 = 985.50 : x
2. Step 2: Convert to fraction form
   2,372.52/3,558.66 = 985.50/x
3. Step 3: Cross multiply
   2,372.52x = 3,558.66 × 985.50
4. Step 4: Simplify right side
   2,372.52x = 3,507,059.43
5. Step 5: Solve for x
   x = 3,507,059.43/2,372.52
6. Step 6: Final answer
   x = 1,478.20