Finding the Fourth Proportional to 2,146.86, 3,220.91 and 1,051.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,146.86 : 3,220.91 = 1,051.83 : x
2. Step 2: Convert to fraction form
   2,146.86/3,220.91 = 1,051.83/x
3. Step 3: Cross multiply
   2,146.86x = 3,220.91 × 1,051.83
4. Step 4: Simplify right side
   2,146.86x = 3,387,844.51
5. Step 5: Solve for x
   x = 3,387,844.51/2,146.86
6. Step 6: Final answer
   x = 1,578.05