Finding the Fourth Proportional to 1,810.80, 2,498.04 and 1,111.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,810.80 : 2,498.04 = 1,111.92 : x
2. Step 2: Convert to fraction form
   1,810.80/2,498.04 = 1,111.92/x
3. Step 3: Cross multiply
   1,810.80x = 2,498.04 × 1,111.92
4. Step 4: Simplify right side
   1,810.80x = 2,777,620.64
5. Step 5: Solve for x
   x = 2,777,620.64/1,810.80
6. Step 6: Final answer
   x = 1,533.92