Finding the Fourth Proportional to 1,390.01, 2,066.24 and 1,348.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,390.01 : 2,066.24 = 1,348.55 : x
2. Step 2: Convert to fraction form
   1,390.01/2,066.24 = 1,348.55/x
3. Step 3: Cross multiply
   1,390.01x = 2,066.24 × 1,348.55
4. Step 4: Simplify right side
   1,390.01x = 2,786,427.95
5. Step 5: Solve for x
   x = 2,786,427.95/1,390.01
6. Step 6: Final answer
   x = 2,004.61