Finding the Fourth Proportional to 1,664.90, 2,495.52 and 934.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,664.90 : 2,495.52 = 934.10 : x
2. Step 2: Convert to fraction form
   1,664.90/2,495.52 = 934.10/x
3. Step 3: Cross multiply
   1,664.90x = 2,495.52 × 934.10
4. Step 4: Simplify right side
   1,664.90x = 2,331,052.75
5. Step 5: Solve for x
   x = 2,331,052.75/1,664.90
6. Step 6: Final answer
   x = 1,400.12