Finding the Fourth Proportional to 1,443.03, 1,973.70 and 1,420.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.03 : 1,973.70 = 1,420.35 : x
2. Step 2: Convert to fraction form
   1,443.03/1,973.70 = 1,420.35/x
3. Step 3: Cross multiply
   1,443.03x = 1,973.70 × 1,420.35
4. Step 4: Simplify right side
   1,443.03x = 2,803,344.80
5. Step 5: Solve for x
   x = 2,803,344.80/1,443.03
6. Step 6: Final answer
   x = 1,942.68