Finding the Fourth Proportional to 1,485.83, 2,223.47 and 1,094.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,485.83 : 2,223.47 = 1,094.90 : x
2. Step 2: Convert to fraction form
   1,485.83/2,223.47 = 1,094.90/x
3. Step 3: Cross multiply
   1,485.83x = 2,223.47 × 1,094.90
4. Step 4: Simplify right side
   1,485.83x = 2,434,460.71
5. Step 5: Solve for x
   x = 2,434,460.71/1,485.83
6. Step 6: Final answer
   x = 1,638.46