Finding the Fourth Proportional to 1,019,551.25, 1,406,978.71 and 584,109.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,019,551.25 : 1,406,978.71 = 584,109.63 : x
2. Step 2: Convert to fraction form
   1,019,551.25/1,406,978.71 = 584,109.63/x
3. Step 3: Cross multiply
   1,019,551.25x = 1,406,978.71 × 584,109.63
4. Step 4: Simplify right side
   1,019,551.25x = 821,829,812,255.70
5. Step 5: Solve for x
   x = 821,829,812,255.70/1,019,551.25
6. Step 6: Final answer
   x = 806,070.13