Finding the Fourth Proportional to 1,400.39, 2,100.56 and 475.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,400.39 : 2,100.56 = 475.93 : x
2. Step 2: Convert to fraction form
   1,400.39/2,100.56 = 475.93/x
3. Step 3: Cross multiply
   1,400.39x = 2,100.56 × 475.93
4. Step 4: Simplify right side
   1,400.39x = 999,711.89
5. Step 5: Solve for x
   x = 999,711.89/1,400.39
6. Step 6: Final answer
   x = 713.88