Finding the Fourth Proportional to 1,345.52, 1,856.72 and 755.95

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345.52 : 1,856.72 = 755.95 : x
2. Step 2: Convert to fraction form
   1,345.52/1,856.72 = 755.95/x
3. Step 3: Cross multiply
   1,345.52x = 1,856.72 × 755.95
4. Step 4: Simplify right side
   1,345.52x = 1,403,587.48
5. Step 5: Solve for x
   x = 1,403,587.48/1,345.52
6. Step 6: Final answer
   x = 1,043.16