Finding the Fourth Proportional to 1,429.08, 1,970.46 and 1,325.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429.08 : 1,970.46 = 1,325.40 : x
2. Step 2: Convert to fraction form
   1,429.08/1,970.46 = 1,325.40/x
3. Step 3: Cross multiply
   1,429.08x = 1,970.46 × 1,325.40
4. Step 4: Simplify right side
   1,429.08x = 2,611,647.68
5. Step 5: Solve for x
   x = 2,611,647.68/1,429.08
6. Step 6: Final answer
   x = 1,827.50