Finding the Fourth Proportional to 1,105.32, 1,526.39 and 947.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.32 : 1,526.39 = 947.04 : x
2. Step 2: Convert to fraction form
   1,105.32/1,526.39 = 947.04/x
3. Step 3: Cross multiply
   1,105.32x = 1,526.39 × 947.04
4. Step 4: Simplify right side
   1,105.32x = 1,445,552.39
5. Step 5: Solve for x
   x = 1,445,552.39/1,105.32
6. Step 6: Final answer
   x = 1,307.81