Finding the Fourth Proportional to 2,573.69, 3,861.09 and 930.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,573.69 : 3,861.09 = 930.06 : x
2. Step 2: Convert to fraction form
   2,573.69/3,861.09 = 930.06/x
3. Step 3: Cross multiply
   2,573.69x = 3,861.09 × 930.06
4. Step 4: Simplify right side
   2,573.69x = 3,591,045.37
5. Step 5: Solve for x
   x = 3,591,045.37/2,573.69
6. Step 6: Final answer
   x = 1,395.29