Finding the Fourth Proportional to 2,209.02, 3,314.61 and 1,054.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,209.02 : 3,314.61 = 1,054.50 : x
2. Step 2: Convert to fraction form
   2,209.02/3,314.61 = 1,054.50/x
3. Step 3: Cross multiply
   2,209.02x = 3,314.61 × 1,054.50
4. Step 4: Simplify right side
   2,209.02x = 3,495,256.25
5. Step 5: Solve for x
   x = 3,495,256.25/2,209.02
6. Step 6: Final answer
   x = 1,582.27