Finding the Fourth Proportional to 2,319.32, 3,477.89 and 1,345.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,319.32 : 3,477.89 = 1,345.70 : x
2. Step 2: Convert to fraction form
   2,319.32/3,477.89 = 1,345.70/x
3. Step 3: Cross multiply
   2,319.32x = 3,477.89 × 1,345.70
4. Step 4: Simplify right side
   2,319.32x = 4,680,182.55
5. Step 5: Solve for x
   x = 4,680,182.55/2,319.32
6. Step 6: Final answer
   x = 2,017.92