Finding the Fourth Proportional to 1,017,554.51, 1,404,162.29 and 558,666.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017,554.51 : 1,404,162.29 = 558,666.50 : x
2. Step 2: Convert to fraction form
   1,017,554.51/1,404,162.29 = 558,666.50/x
3. Step 3: Cross multiply
   1,017,554.51x = 1,404,162.29 × 558,666.50
4. Step 4: Simplify right side
   1,017,554.51x = 784,458,428,156.16
5. Step 5: Solve for x
   x = 784,458,428,156.16/1,017,554.51
6. Step 6: Final answer
   x = 770,925.21