Finding the Fourth Proportional to 1,630.56, 2,445.12 and 1,146.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,630.56 : 2,445.12 = 1,146.72 : x
2. Step 2: Convert to fraction form
   1,630.56/2,445.12 = 1,146.72/x
3. Step 3: Cross multiply
   1,630.56x = 2,445.12 × 1,146.72
4. Step 4: Simplify right side
   1,630.56x = 2,803,868.01
5. Step 5: Solve for x
   x = 2,803,868.01/1,630.56
6. Step 6: Final answer
   x = 1,719.57