Finding the Fourth Proportional to 1,871.76, 2,806.71 and 1,092.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,871.76 : 2,806.71 = 1,092.03 : x
2. Step 2: Convert to fraction form
   1,871.76/2,806.71 = 1,092.03/x
3. Step 3: Cross multiply
   1,871.76x = 2,806.71 × 1,092.03
4. Step 4: Simplify right side
   1,871.76x = 3,065,011.52
5. Step 5: Solve for x
   x = 3,065,011.52/1,871.76
6. Step 6: Final answer
   x = 1,637.50