Finding the Fourth Proportional to 1,700.37, 2,347.89 and 1,385.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,700.37 : 2,347.89 = 1,385.67 : x
2. Step 2: Convert to fraction form
   1,700.37/2,347.89 = 1,385.67/x
3. Step 3: Cross multiply
   1,700.37x = 2,347.89 × 1,385.67
4. Step 4: Simplify right side
   1,700.37x = 3,253,400.74
5. Step 5: Solve for x
   x = 3,253,400.74/1,700.37
6. Step 6: Final answer
   x = 1,913.35