Finding the Fourth Proportional to 1,401.54, 1,929.86 and 1,106.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.54 : 1,929.86 = 1,106.70 : x
2. Step 2: Convert to fraction form
   1,401.54/1,929.86 = 1,106.70/x
3. Step 3: Cross multiply
   1,401.54x = 1,929.86 × 1,106.70
4. Step 4: Simplify right side
   1,401.54x = 2,135,776.06
5. Step 5: Solve for x
   x = 2,135,776.06/1,401.54
6. Step 6: Final answer
   x = 1,523.88