Finding the Fourth Proportional to 2,953.50, 4,431.00 and 873.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,953.50 : 4,431.00 = 873.59 : x
2. Step 2: Convert to fraction form
   2,953.50/4,431.00 = 873.59/x
3. Step 3: Cross multiply
   2,953.50x = 4,431.00 × 873.59
4. Step 4: Simplify right side
   2,953.50x = 3,870,858.41
5. Step 5: Solve for x
   x = 3,870,858.41/2,953.50
6. Step 6: Final answer
   x = 1,310.60