Finding the Fourth Proportional to 1,693.86, 2,337.93 and 1,072.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,693.86 : 2,337.93 = 1,072.50 : x
2. Step 2: Convert to fraction form
   1,693.86/2,337.93 = 1,072.50/x
3. Step 3: Cross multiply
   1,693.86x = 2,337.93 × 1,072.50
4. Step 4: Simplify right side
   1,693.86x = 2,507,429.93
5. Step 5: Solve for x
   x = 2,507,429.93/1,693.86
6. Step 6: Final answer
   x = 1,480.31