Finding the Fourth Proportional to 3,385.32, 5,078.34 and 1,437.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,385.32 : 5,078.34 = 1,437.72 : x
2. Step 2: Convert to fraction form
   3,385.32/5,078.34 = 1,437.72/x
3. Step 3: Cross multiply
   3,385.32x = 5,078.34 × 1,437.72
4. Step 4: Simplify right side
   3,385.32x = 7,301,230.98
5. Step 5: Solve for x
   x = 7,301,230.98/3,385.32
6. Step 6: Final answer
   x = 2,156.73