Finding the Fourth Proportional to 1,345.47, 1,856.94 and 756.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345.47 : 1,856.94 = 756.06 : x
2. Step 2: Convert to fraction form
   1,345.47/1,856.94 = 756.06/x
3. Step 3: Cross multiply
   1,345.47x = 1,856.94 × 756.06
4. Step 4: Simplify right side
   1,345.47x = 1,403,958.06
5. Step 5: Solve for x
   x = 1,403,958.06/1,345.47
6. Step 6: Final answer
   x = 1,043.47