Finding the Fourth Proportional to 2,946.51, 4,419.72 and 1,213.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,946.51 : 4,419.72 = 1,213.92 : x
2. Step 2: Convert to fraction form
   2,946.51/4,419.72 = 1,213.92/x
3. Step 3: Cross multiply
   2,946.51x = 4,419.72 × 1,213.92
4. Step 4: Simplify right side
   2,946.51x = 5,365,186.50
5. Step 5: Solve for x
   x = 5,365,186.50/2,946.51
6. Step 6: Final answer
   x = 1,820.86