Finding the Fourth Proportional to 1,764.04, 2,445.53 and 1,670.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,764.04 : 2,445.53 = 1,670.42 : x
2. Step 2: Convert to fraction form
   1,764.04/2,445.53 = 1,670.42/x
3. Step 3: Cross multiply
   1,764.04x = 2,445.53 × 1,670.42
4. Step 4: Simplify right side
   1,764.04x = 4,085,047.76
5. Step 5: Solve for x
   x = 4,085,047.76/1,764.04
6. Step 6: Final answer
   x = 2,315.73