Finding the Fourth Proportional to 1,670.98, 2,304.91 and 1,316.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,670.98 : 2,304.91 = 1,316.53 : x
2. Step 2: Convert to fraction form
   1,670.98/2,304.91 = 1,316.53/x
3. Step 3: Cross multiply
   1,670.98x = 2,304.91 × 1,316.53
4. Step 4: Simplify right side
   1,670.98x = 3,034,483.16
5. Step 5: Solve for x
   x = 3,034,483.16/1,670.98
6. Step 6: Final answer
   x = 1,815.99