Finding the Fourth Proportional to 1,670.90, 2,304.74 and 1,340.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,670.90 : 2,304.74 = 1,340.10 : x
2. Step 2: Convert to fraction form
   1,670.90/2,304.74 = 1,340.10/x
3. Step 3: Cross multiply
   1,670.90x = 2,304.74 × 1,340.10
4. Step 4: Simplify right side
   1,670.90x = 3,088,585.42
5. Step 5: Solve for x
   x = 3,088,585.42/1,670.90
6. Step 6: Final answer
   x = 1,848.46