Finding the Fourth Proportional to 1,369.58, 1,887.93 and 1,074.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,369.58 : 1,887.93 = 1,074.34 : x
2. Step 2: Convert to fraction form
   1,369.58/1,887.93 = 1,074.34/x
3. Step 3: Cross multiply
   1,369.58x = 1,887.93 × 1,074.34
4. Step 4: Simplify right side
   1,369.58x = 2,028,278.72
5. Step 5: Solve for x
   x = 2,028,278.72/1,369.58
6. Step 6: Final answer
   x = 1,480.95