Finding the Fourth Proportional to 2,586,705.86, 3,569,483.31 and 1,553,599.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,586,705.86 : 3,569,483.31 = 1,553,599.78 : x
2. Step 2: Convert to fraction form
   2,586,705.86/3,569,483.31 = 1,553,599.78/x
3. Step 3: Cross multiply
   2,586,705.86x = 3,569,483.31 × 1,553,599.78
4. Step 4: Simplify right side
   2,586,705.86x = 5,545,548,479,118.96
5. Step 5: Solve for x
   x = 5,545,548,479,118.96/2,586,705.86
6. Step 6: Final answer
   x = 2,143,865.13