Finding the Fourth Proportional to 1,345.02, 1,855.95 and 755.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345.02 : 1,855.95 = 755.42 : x
2. Step 2: Convert to fraction form
   1,345.02/1,855.95 = 755.42/x
3. Step 3: Cross multiply
   1,345.02x = 1,855.95 × 755.42
4. Step 4: Simplify right side
   1,345.02x = 1,402,012.47
5. Step 5: Solve for x
   x = 1,402,012.47/1,345.02
6. Step 6: Final answer
   x = 1,042.37