Finding the Fourth Proportional to 2,810.03, 4,216.59 and 1,054.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,810.03 : 4,216.59 = 1,054.98 : x
2. Step 2: Convert to fraction form
   2,810.03/4,216.59 = 1,054.98/x
3. Step 3: Cross multiply
   2,810.03x = 4,216.59 × 1,054.98
4. Step 4: Simplify right side
   2,810.03x = 4,448,418.12
5. Step 5: Solve for x
   x = 4,448,418.12/2,810.03
6. Step 6: Final answer
   x = 1,583.05