Finding the Fourth Proportional to 1,670.76, 2,305.59 and 924.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,670.76 : 2,305.59 = 924.72 : x
2. Step 2: Convert to fraction form
   1,670.76/2,305.59 = 924.72/x
3. Step 3: Cross multiply
   1,670.76x = 2,305.59 × 924.72
4. Step 4: Simplify right side
   1,670.76x = 2,132,025.18
5. Step 5: Solve for x
   x = 2,132,025.18/1,670.76
6. Step 6: Final answer
   x = 1,276.08