Finding the Fourth Proportional to 1,669.31, 2,301.54 and 1,070.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,669.31 : 2,301.54 = 1,070.74 : x
2. Step 2: Convert to fraction form
   1,669.31/2,301.54 = 1,070.74/x
3. Step 3: Cross multiply
   1,669.31x = 2,301.54 × 1,070.74
4. Step 4: Simplify right side
   1,669.31x = 2,464,357.83
5. Step 5: Solve for x
   x = 2,464,357.83/1,669.31
6. Step 6: Final answer
   x = 1,476.28