Finding the Fourth Proportional to 1,156,585.34, 1,596,255.37 and 666,459.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,156,585.34 : 1,596,255.37 = 666,459.50 : x
2. Step 2: Convert to fraction form
   1,156,585.34/1,596,255.37 = 666,459.50/x
3. Step 3: Cross multiply
   1,156,585.34x = 1,596,255.37 × 666,459.50
4. Step 4: Simplify right side
   1,156,585.34x = 1,063,839,555,762.52
5. Step 5: Solve for x
   x = 1,063,839,555,762.52/1,156,585.34
6. Step 6: Final answer
   x = 919,810.69