Finding the Fourth Proportional to 1,457.56, 1,997.87 and 1,437.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,457.56 : 1,997.87 = 1,437.06 : x
2. Step 2: Convert to fraction form
   1,457.56/1,997.87 = 1,437.06/x
3. Step 3: Cross multiply
   1,457.56x = 1,997.87 × 1,437.06
4. Step 4: Simplify right side
   1,457.56x = 2,871,059.06
5. Step 5: Solve for x
   x = 2,871,059.06/1,457.56
6. Step 6: Final answer
   x = 1,969.77