Finding the Fourth Proportional to 1,437.82, 1,983.45 and 913.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,437.82 : 1,983.45 = 913.30 : x
2. Step 2: Convert to fraction form
   1,437.82/1,983.45 = 913.30/x
3. Step 3: Cross multiply
   1,437.82x = 1,983.45 × 913.30
4. Step 4: Simplify right side
   1,437.82x = 1,811,484.89
5. Step 5: Solve for x
   x = 1,811,484.89/1,437.82
6. Step 6: Final answer
   x = 1,259.88