Finding the Fourth Proportional to 1,815.04, 2,503.74 and 1,116.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,815.04 : 2,503.74 = 1,116.28 : x
2. Step 2: Convert to fraction form
   1,815.04/2,503.74 = 1,116.28/x
3. Step 3: Cross multiply
   1,815.04x = 2,503.74 × 1,116.28
4. Step 4: Simplify right side
   1,815.04x = 2,794,874.89
5. Step 5: Solve for x
   x = 2,794,874.89/1,815.04
6. Step 6: Final answer
   x = 1,539.84