Finding the Fourth Proportional to 1,541.01, 2,126.59 and 842.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,541.01 : 2,126.59 = 842.39 : x
2. Step 2: Convert to fraction form
   1,541.01/2,126.59 = 842.39/x
3. Step 3: Cross multiply
   1,541.01x = 2,126.59 × 842.39
4. Step 4: Simplify right side
   1,541.01x = 1,791,403.31
5. Step 5: Solve for x
   x = 1,791,403.31/1,541.01
6. Step 6: Final answer
   x = 1,162.49