Finding the Fourth Proportional to 1,200.83, 1,798.74 and 1,054.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200.83 : 1,798.74 = 1,054.76 : x
2. Step 2: Convert to fraction form
   1,200.83/1,798.74 = 1,054.76/x
3. Step 3: Cross multiply
   1,200.83x = 1,798.74 × 1,054.76
4. Step 4: Simplify right side
   1,200.83x = 1,897,230.01
5. Step 5: Solve for x
   x = 1,897,230.01/1,200.83
6. Step 6: Final answer
   x = 1,579.94