Finding the Fourth Proportional to 2,142.52, 2,956.24 and 1,210.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142.52 : 2,956.24 = 1,210.84 : x
2. Step 2: Convert to fraction form
   2,142.52/2,956.24 = 1,210.84/x
3. Step 3: Cross multiply
   2,142.52x = 2,956.24 × 1,210.84
4. Step 4: Simplify right side
   2,142.52x = 3,579,533.64
5. Step 5: Solve for x
   x = 3,579,533.64/2,142.52
6. Step 6: Final answer
   x = 1,670.71