Finding the Fourth Proportional to 2,120.52, 2,927.30 and 1,335.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,120.52 : 2,927.30 = 1,335.72 : x
2. Step 2: Convert to fraction form
   2,120.52/2,927.30 = 1,335.72/x
3. Step 3: Cross multiply
   2,120.52x = 2,927.30 × 1,335.72
4. Step 4: Simplify right side
   2,120.52x = 3,910,053.16
5. Step 5: Solve for x
   x = 3,910,053.16/2,120.52
6. Step 6: Final answer
   x = 1,843.91