Finding the Fourth Proportional to 6,925.55, 10,386.18 and 1,993.86

Step by Step Solution

1. Step 1: Write the proportion equation
   6,925.55 : 10,386.18 = 1,993.86 : x
2. Step 2: Convert to fraction form
   6,925.55/10,386.18 = 1,993.86/x
3. Step 3: Cross multiply
   6,925.55x = 10,386.18 × 1,993.86
4. Step 4: Simplify right side
   6,925.55x = 20,708,588.85
5. Step 5: Solve for x
   x = 20,708,588.85/6,925.55
6. Step 6: Final answer
   x = 2,990.17