Finding the Fourth Proportional to 2,152,356, 2,970,251.28 and 1,247,462.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,152,356 : 2,970,251.28 = 1,247,462.88 : x
2. Step 2: Convert to fraction form
   2,152,356/2,970,251.28 = 1,247,462.88/x
3. Step 3: Cross multiply
   2,152,356x = 2,970,251.28 × 1,247,462.88
4. Step 4: Simplify right side
   2,152,356x = 3,705,278,216,072.49
5. Step 5: Solve for x
   x = 3,705,278,216,072.49/2,152,356
6. Step 6: Final answer
   x = 1,721,498.77