Finding the Fourth Proportional to 3,146.93, 4,342.72 and 1,820.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,146.93 : 4,342.72 = 1,820.76 : x
2. Step 2: Convert to fraction form
   3,146.93/4,342.72 = 1,820.76/x
3. Step 3: Cross multiply
   3,146.93x = 4,342.72 × 1,820.76
4. Step 4: Simplify right side
   3,146.93x = 7,907,050.87
5. Step 5: Solve for x
   x = 7,907,050.87/3,146.93
6. Step 6: Final answer
   x = 2,512.62