Finding the Fourth Proportional to 1,669.83, 2,502.43 and 1,380.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,669.83 : 2,502.43 = 1,380.81 : x
2. Step 2: Convert to fraction form
   1,669.83/2,502.43 = 1,380.81/x
3. Step 3: Cross multiply
   1,669.83x = 2,502.43 × 1,380.81
4. Step 4: Simplify right side
   1,669.83x = 3,455,377.56
5. Step 5: Solve for x
   x = 3,455,377.56/1,669.83
6. Step 6: Final answer
   x = 2,069.29