Finding the Fourth Proportional to 1,005,186.17, 1,387,167.63 and 546,300.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,005,186.17 : 1,387,167.63 = 546,300.79 : x
2. Step 2: Convert to fraction form
   1,005,186.17/1,387,167.63 = 546,300.79/x
3. Step 3: Cross multiply
   1,005,186.17x = 1,387,167.63 × 546,300.79
4. Step 4: Simplify right side
   1,005,186.17x = 757,810,772,131.43
5. Step 5: Solve for x
   x = 757,810,772,131.43/1,005,186.17
6. Step 6: Final answer
   x = 753,900.91