Finding the Fourth Proportional to 2,602.51, 3,591.48 and 1,423.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,602.51 : 3,591.48 = 1,423.60 : x
2. Step 2: Convert to fraction form
   2,602.51/3,591.48 = 1,423.60/x
3. Step 3: Cross multiply
   2,602.51x = 3,591.48 × 1,423.60
4. Step 4: Simplify right side
   2,602.51x = 5,112,830.93
5. Step 5: Solve for x
   x = 5,112,830.93/2,602.51
6. Step 6: Final answer
   x = 1,964.58