Finding the Fourth Proportional to 1,583.94, 2,375.31 and 926.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,583.94 : 2,375.31 = 926.06 : x
2. Step 2: Convert to fraction form
   1,583.94/2,375.31 = 926.06/x
3. Step 3: Cross multiply
   1,583.94x = 2,375.31 × 926.06
4. Step 4: Simplify right side
   1,583.94x = 2,199,667.70
5. Step 5: Solve for x
   x = 2,199,667.70/1,583.94
6. Step 6: Final answer
   x = 1,388.73