Finding the Fourth Proportional to 1,435.69, 1,977.48 and 1,103.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,435.69 : 1,977.48 = 1,103.48 : x
2. Step 2: Convert to fraction form
   1,435.69/1,977.48 = 1,103.48/x
3. Step 3: Cross multiply
   1,435.69x = 1,977.48 × 1,103.48
4. Step 4: Simplify right side
   1,435.69x = 2,182,109.63
5. Step 5: Solve for x
   x = 2,182,109.63/1,435.69
6. Step 6: Final answer
   x = 1,519.90