Finding the Fourth Proportional to 1,641.42, 2,460.63 and 763.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,641.42 : 2,460.63 = 763.59 : x
2. Step 2: Convert to fraction form
   1,641.42/2,460.63 = 763.59/x
3. Step 3: Cross multiply
   1,641.42x = 2,460.63 × 763.59
4. Step 4: Simplify right side
   1,641.42x = 1,878,912.46
5. Step 5: Solve for x
   x = 1,878,912.46/1,641.42
6. Step 6: Final answer
   x = 1,144.69