Finding the Fourth Proportional to 1,803.27, 2,488.53 and 1,056.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,803.27 : 2,488.53 = 1,056.99 : x
2. Step 2: Convert to fraction form
   1,803.27/2,488.53 = 1,056.99/x
3. Step 3: Cross multiply
   1,803.27x = 2,488.53 × 1,056.99
4. Step 4: Simplify right side
   1,803.27x = 2,630,351.32
5. Step 5: Solve for x
   x = 2,630,351.32/1,803.27
6. Step 6: Final answer
   x = 1,458.66