Finding the Fourth Proportional to 1,670.45, 2,305.41 and 971.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,670.45 : 2,305.41 = 971.82 : x
2. Step 2: Convert to fraction form
   1,670.45/2,305.41 = 971.82/x
3. Step 3: Cross multiply
   1,670.45x = 2,305.41 × 971.82
4. Step 4: Simplify right side
   1,670.45x = 2,240,443.55
5. Step 5: Solve for x
   x = 2,240,443.55/1,670.45
6. Step 6: Final answer
   x = 1,341.23