Finding the Fourth Proportional to 1,047.49, 1,445.52 and 575.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.49 : 1,445.52 = 575.40 : x
2. Step 2: Convert to fraction form
   1,047.49/1,445.52 = 575.40/x
3. Step 3: Cross multiply
   1,047.49x = 1,445.52 × 575.40
4. Step 4: Simplify right side
   1,047.49x = 831,758.17
5. Step 5: Solve for x
   x = 831,758.17/1,047.49
6. Step 6: Final answer
   x = 794.05