Finding the Fourth Proportional to 3,670.57, 5,505.69 and 897.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,670.57 : 5,505.69 = 897.10 : x
2. Step 2: Convert to fraction form
   3,670.57/5,505.69 = 897.10/x
3. Step 3: Cross multiply
   3,670.57x = 5,505.69 × 897.10
4. Step 4: Simplify right side
   3,670.57x = 4,939,136.17
5. Step 5: Solve for x
   x = 4,939,136.17/3,670.57
6. Step 6: Final answer
   x = 1,345.60