Finding the Fourth Proportional to 1,597.30, 2,390.55 and 1,402.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,597.30 : 2,390.55 = 1,402.90 : x
2. Step 2: Convert to fraction form
   1,597.30/2,390.55 = 1,402.90/x
3. Step 3: Cross multiply
   1,597.30x = 2,390.55 × 1,402.90
4. Step 4: Simplify right side
   1,597.30x = 3,353,702.60
5. Step 5: Solve for x
   x = 3,353,702.60/1,597.30
6. Step 6: Final answer
   x = 2,099.61