Finding the Fourth Proportional to 1,418.00, 2,122.83 and 1,054.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,418.00 : 2,122.83 = 1,054.40 : x
2. Step 2: Convert to fraction form
   1,418.00/2,122.83 = 1,054.40/x
3. Step 3: Cross multiply
   1,418.00x = 2,122.83 × 1,054.40
4. Step 4: Simplify right side
   1,418.00x = 2,238,301.34
5. Step 5: Solve for x
   x = 2,238,301.34/1,418.00
6. Step 6: Final answer
   x = 1,578.50