Finding the Fourth Proportional to 1,180.21, 1,627.72 and 1,047.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,180.21 : 1,627.72 = 1,047.53 : x
2. Step 2: Convert to fraction form
   1,180.21/1,627.72 = 1,047.53/x
3. Step 3: Cross multiply
   1,180.21x = 1,627.72 × 1,047.53
4. Step 4: Simplify right side
   1,180.21x = 1,705,074.77
5. Step 5: Solve for x
   x = 1,705,074.77/1,180.21
6. Step 6: Final answer
   x = 1,444.72