Finding the Fourth Proportional to 2,091.71, 3,140.17 and 1,302.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,091.71 : 3,140.17 = 1,302.23 : x
2. Step 2: Convert to fraction form
   2,091.71/3,140.17 = 1,302.23/x
3. Step 3: Cross multiply
   2,091.71x = 3,140.17 × 1,302.23
4. Step 4: Simplify right side
   2,091.71x = 4,089,210.51
5. Step 5: Solve for x
   x = 4,089,210.51/2,091.71
6. Step 6: Final answer
   x = 1,954.96