Finding the Fourth Proportional to 1,641.42, 2,462.61 and 948.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,641.42 : 2,462.61 = 948.58 : x
2. Step 2: Convert to fraction form
   1,641.42/2,462.61 = 948.58/x
3. Step 3: Cross multiply
   1,641.42x = 2,462.61 × 948.58
4. Step 4: Simplify right side
   1,641.42x = 2,335,982.59
5. Step 5: Solve for x
   x = 2,335,982.59/1,641.42
6. Step 6: Final answer
   x = 1,423.15