Finding the Fourth Proportional to 1,941.72, 2,891.58 and 1,817.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,941.72 : 2,891.58 = 1,817.16 : x
2. Step 2: Convert to fraction form
   1,941.72/2,891.58 = 1,817.16/x
3. Step 3: Cross multiply
   1,941.72x = 2,891.58 × 1,817.16
4. Step 4: Simplify right side
   1,941.72x = 5,254,463.51
5. Step 5: Solve for x
   x = 5,254,463.51/1,941.72
6. Step 6: Final answer
   x = 2,706.09