Finding the Fourth Proportional to 1,060.34, 1,588.76 and 410.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,060.34 : 1,588.76 = 410.72 : x
2. Step 2: Convert to fraction form
   1,060.34/1,588.76 = 410.72/x
3. Step 3: Cross multiply
   1,060.34x = 1,588.76 × 410.72
4. Step 4: Simplify right side
   1,060.34x = 652,533.45
5. Step 5: Solve for x
   x = 652,533.45/1,060.34
6. Step 6: Final answer
   x = 615.40