Finding the Fourth Proportional to 1,000,291.89, 1,380,402.71 and 541,406.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,000,291.89 : 1,380,402.71 = 541,406.39 : x
2. Step 2: Convert to fraction form
   1,000,291.89/1,380,402.71 = 541,406.39/x
3. Step 3: Cross multiply
   1,000,291.89x = 1,380,402.71 × 541,406.39
4. Step 4: Simplify right side
   1,000,291.89x = 747,358,840,388.55
5. Step 5: Solve for x
   x = 747,358,840,388.55/1,000,291.89
6. Step 6: Final answer
   x = 747,140.75