Finding the Fourth Proportional to 1,880.14, 2,596.72 and 1,281.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,880.14 : 2,596.72 = 1,281.60 : x
2. Step 2: Convert to fraction form
   1,880.14/2,596.72 = 1,281.60/x
3. Step 3: Cross multiply
   1,880.14x = 2,596.72 × 1,281.60
4. Step 4: Simplify right side
   1,880.14x = 3,327,967.69
5. Step 5: Solve for x
   x = 3,327,967.69/1,880.14
6. Step 6: Final answer
   x = 1,770.07