Finding the Fourth Proportional to 1,345.35, 1,856.61 and 755.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345.35 : 1,856.61 = 755.93 : x
2. Step 2: Convert to fraction form
   1,345.35/1,856.61 = 755.93/x
3. Step 3: Cross multiply
   1,345.35x = 1,856.61 × 755.93
4. Step 4: Simplify right side
   1,345.35x = 1,403,457.91
5. Step 5: Solve for x
   x = 1,403,457.91/1,345.35
6. Step 6: Final answer
   x = 1,043.19