Finding the Fourth Proportional to 1,437.90, 1,983.60 and 914.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,437.90 : 1,983.60 = 914.10 : x
2. Step 2: Convert to fraction form
   1,437.90/1,983.60 = 914.10/x
3. Step 3: Cross multiply
   1,437.90x = 1,983.60 × 914.10
4. Step 4: Simplify right side
   1,437.90x = 1,813,208.76
5. Step 5: Solve for x
   x = 1,813,208.76/1,437.90
6. Step 6: Final answer
   x = 1,261.01