Finding the Fourth Proportional to 1,802.98, 2,487.27 and 1,140.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,802.98 : 2,487.27 = 1,140.81 : x
2. Step 2: Convert to fraction form
   1,802.98/2,487.27 = 1,140.81/x
3. Step 3: Cross multiply
   1,802.98x = 2,487.27 × 1,140.81
4. Step 4: Simplify right side
   1,802.98x = 2,837,502.49
5. Step 5: Solve for x
   x = 2,837,502.49/1,802.98
6. Step 6: Final answer
   x = 1,573.78