Finding the Fourth Proportional to 1,018,301.99, 1,405,100.54 and 588,499.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018,301.99 : 1,405,100.54 = 588,499.12 : x
2. Step 2: Convert to fraction form
   1,018,301.99/1,405,100.54 = 588,499.12/x
3. Step 3: Cross multiply
   1,018,301.99x = 1,405,100.54 × 588,499.12
4. Step 4: Simplify right side
   1,018,301.99x = 826,900,421,333.53
5. Step 5: Solve for x
   x = 826,900,421,333.53/1,018,301.99
6. Step 6: Final answer
   x = 812,038.50