Finding the Fourth Proportional to 1,873.68, 2,806.20 and 1,050.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,873.68 : 2,806.20 = 1,050.72 : x
2. Step 2: Convert to fraction form
   1,873.68/2,806.20 = 1,050.72/x
3. Step 3: Cross multiply
   1,873.68x = 2,806.20 × 1,050.72
4. Step 4: Simplify right side
   1,873.68x = 2,948,530.46
5. Step 5: Solve for x
   x = 2,948,530.46/1,873.68
6. Step 6: Final answer
   x = 1,573.66