Finding the Fourth Proportional to 1,501.56, 2,061 and 1,438.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,501.56 : 2,061 = 1,438.20 : x
2. Step 2: Convert to fraction form
   1,501.56/2,061 = 1,438.20/x
3. Step 3: Cross multiply
   1,501.56x = 2,061 × 1,438.20
4. Step 4: Simplify right side
   1,501.56x = 2,964,130.20
5. Step 5: Solve for x
   x = 2,964,130.20/1,501.56
6. Step 6: Final answer
   x = 1,974.03