Finding the Fourth Proportional to 1,119.60, 1,543.59 and 930.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,119.60 : 1,543.59 = 930.06 : x
2. Step 2: Convert to fraction form
   1,119.60/1,543.59 = 930.06/x
3. Step 3: Cross multiply
   1,119.60x = 1,543.59 × 930.06
4. Step 4: Simplify right side
   1,119.60x = 1,435,631.32
5. Step 5: Solve for x
   x = 1,435,631.32/1,119.60
6. Step 6: Final answer
   x = 1,282.27