Finding the Fourth Proportional to 742,173, 1,024,200.72 and 402,641.25

Step by Step Solution

1. Step 1: Write the proportion equation
   742,173 : 1,024,200.72 = 402,641.25 : x
2. Step 2: Convert to fraction form
   742,173/1,024,200.72 = 402,641.25/x
3. Step 3: Cross multiply
   742,173x = 1,024,200.72 × 402,641.25
4. Step 4: Simplify right side
   742,173x = 412,385,458,151.70
5. Step 5: Solve for x
   x = 412,385,458,151.70/742,173
6. Step 6: Final answer
   x = 555,646.00