Finding the Fourth Proportional to 748,967.15, 1,123,498.01 and 316,603.98

Step by Step Solution

1. Step 1: Write the proportion equation
   748,967.15 : 1,123,498.01 = 316,603.98 : x
2. Step 2: Convert to fraction form
   748,967.15/1,123,498.01 = 316,603.98/x
3. Step 3: Cross multiply
   748,967.15x = 1,123,498.01 × 316,603.98
4. Step 4: Simplify right side
   748,967.15x = 355,703,942,279.59
5. Step 5: Solve for x
   x = 355,703,942,279.59/748,967.15
6. Step 6: Final answer
   x = 474,925.96