Finding the Fourth Proportional to 1,540.61, 2,126.06 and 841.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,540.61 : 2,126.06 = 841.98 : x
2. Step 2: Convert to fraction form
   1,540.61/2,126.06 = 841.98/x
3. Step 3: Cross multiply
   1,540.61x = 2,126.06 × 841.98
4. Step 4: Simplify right side
   1,540.61x = 1,790,095.79
5. Step 5: Solve for x
   x = 1,790,095.79/1,540.61
6. Step 6: Final answer
   x = 1,161.94