Finding the Fourth Proportional to 1,437.56, 1,983.30 and 1,018.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,437.56 : 1,983.30 = 1,018.64 : x
2. Step 2: Convert to fraction form
   1,437.56/1,983.30 = 1,018.64/x
3. Step 3: Cross multiply
   1,437.56x = 1,983.30 × 1,018.64
4. Step 4: Simplify right side
   1,437.56x = 2,020,268.71
5. Step 5: Solve for x
   x = 2,020,268.71/1,437.56
6. Step 6: Final answer
   x = 1,405.35