Finding the Fourth Proportional to 1,641.07, 2,264.59 and 942.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,641.07 : 2,264.59 = 942.45 : x
2. Step 2: Convert to fraction form
   1,641.07/2,264.59 = 942.45/x
3. Step 3: Cross multiply
   1,641.07x = 2,264.59 × 942.45
4. Step 4: Simplify right side
   1,641.07x = 2,134,262.85
5. Step 5: Solve for x
   x = 2,134,262.85/1,641.07
6. Step 6: Final answer
   x = 1,300.53