Finding the Fourth Proportional to 1,680,796.52, 2,521,216.72 and 558,865.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,680,796.52 : 2,521,216.72 = 558,865.52 : x
2. Step 2: Convert to fraction form
   1,680,796.52/2,521,216.72 = 558,865.52/x
3. Step 3: Cross multiply
   1,680,796.52x = 2,521,216.72 × 558,865.52
4. Step 4: Simplify right side
   1,680,796.52x = 1,409,021,093,255.49
5. Step 5: Solve for x
   x = 1,409,021,093,255.49/1,680,796.52
6. Step 6: Final answer
   x = 838,305.58