Finding the Fourth Proportional to 2,445.10, 3,662.44 and 1,129.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,445.10 : 3,662.44 = 1,129.93 : x
2. Step 2: Convert to fraction form
   2,445.10/3,662.44 = 1,129.93/x
3. Step 3: Cross multiply
   2,445.10x = 3,662.44 × 1,129.93
4. Step 4: Simplify right side
   2,445.10x = 4,138,300.83
5. Step 5: Solve for x
   x = 4,138,300.83/2,445.10
6. Step 6: Final answer
   x = 1,692.49