Finding the Fourth Proportional to 2,142.35, 3,214.59 and 1,046.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142.35 : 3,214.59 = 1,046.69 : x
2. Step 2: Convert to fraction form
   2,142.35/3,214.59 = 1,046.69/x
3. Step 3: Cross multiply
   2,142.35x = 3,214.59 × 1,046.69
4. Step 4: Simplify right side
   2,142.35x = 3,364,671.26
5. Step 5: Solve for x
   x = 3,364,671.26/2,142.35
6. Step 6: Final answer
   x = 1,570.55