Finding the Fourth Proportional to 5,181.00, 7,770.57 and 1,670.86

Step by Step Solution

1. Step 1: Write the proportion equation
   5,181.00 : 7,770.57 = 1,670.86 : x
2. Step 2: Convert to fraction form
   5,181.00/7,770.57 = 1,670.86/x
3. Step 3: Cross multiply
   5,181.00x = 7,770.57 × 1,670.86
4. Step 4: Simplify right side
   5,181.00x = 12,983,538.04
5. Step 5: Solve for x
   x = 12,983,538.04/5,181.00
6. Step 6: Final answer
   x = 2,505.99