Finding the Fourth Proportional to 1,669.08, 2,503.89 and 1,126.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,669.08 : 2,503.89 = 1,126.56 : x
2. Step 2: Convert to fraction form
   1,669.08/2,503.89 = 1,126.56/x
3. Step 3: Cross multiply
   1,669.08x = 2,503.89 × 1,126.56
4. Step 4: Simplify right side
   1,669.08x = 2,820,782.32
5. Step 5: Solve for x
   x = 2,820,782.32/1,669.08
6. Step 6: Final answer
   x = 1,690.02