Finding the Fourth Proportional to 1,345.34, 1,856.76 and 756.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345.34 : 1,856.76 = 756.02 : x
2. Step 2: Convert to fraction form
   1,345.34/1,856.76 = 756.02/x
3. Step 3: Cross multiply
   1,345.34x = 1,856.76 × 756.02
4. Step 4: Simplify right side
   1,345.34x = 1,403,747.70
5. Step 5: Solve for x
   x = 1,403,747.70/1,345.34
6. Step 6: Final answer
   x = 1,043.41