Finding the Fourth Proportional to 1,941.61, 2,911.31 and 1,326.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,941.61 : 2,911.31 = 1,326.06 : x
2. Step 2: Convert to fraction form
   1,941.61/2,911.31 = 1,326.06/x
3. Step 3: Cross multiply
   1,941.61x = 2,911.31 × 1,326.06
4. Step 4: Simplify right side
   1,941.61x = 3,860,571.74
5. Step 5: Solve for x
   x = 3,860,571.74/1,941.61
6. Step 6: Final answer
   x = 1,988.34