Finding the Fourth Proportional to 1,345.08, 1,856.24 and 755.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345.08 : 1,856.24 = 755.62 : x
2. Step 2: Convert to fraction form
   1,345.08/1,856.24 = 755.62/x
3. Step 3: Cross multiply
   1,345.08x = 1,856.24 × 755.62
4. Step 4: Simplify right side
   1,345.08x = 1,402,601.22
5. Step 5: Solve for x
   x = 1,402,601.22/1,345.08
6. Step 6: Final answer
   x = 1,042.76