Finding the Fourth Proportional to 1,872.05, 2,803.82 and 1,140.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,872.05 : 2,803.82 = 1,140.01 : x
2. Step 2: Convert to fraction form
   1,872.05/2,803.82 = 1,140.01/x
3. Step 3: Cross multiply
   1,872.05x = 2,803.82 × 1,140.01
4. Step 4: Simplify right side
   1,872.05x = 3,196,370.13
5. Step 5: Solve for x
   x = 3,196,370.13/1,872.05
6. Step 6: Final answer
   x = 1,707.42